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Cambridge University Press, U.K.
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1993 (V.113), 1995 (V.115), 1997 (V.117), 2000 
V.120(1154-1159+Index), 2001 V.121(1160-1162,



Obstetrical and Gynecological Survey. English,
Monthly. Lippincott Williams & Wilking, U.S.A.
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1.Medical Scienes.Obstetrics and Gynecology. 
1999 V.54(1,4-6, 8-12, Sup.), 2000
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Ocean Development and International Law. 1973.
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1993 (V.24)



Ocean Engineering. 1968. English, 8 times a
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1.Earth sciences_Oceanography. 
1993 (V.20), 1994 V.21(Jan), 1995 (V.22)



Oceanic Abstracts. 1964. English, Bimonthly.
Cambridge Scientific Abstracts, U.S.A.
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1.Earth
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1993 (V.30)



Oceanographic Literature Review. 1953. English,
Monthly. Pergamon Press,Inc., U.S.A.
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1.Earth
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1993 (V.40)



Ocean Oil Weekly Report. 1966. English, Weekly.
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Oceanologica Acta. English, 6 times a year.
Elsevier.
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1.Earth Sciences-Oceanography. 
1999 V.22(1-6), 2000 V.23(1-6), 2001 V.24(1-6,
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OFOGH(Journal of Computer Science and
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1.Engineering_Computer engineering. 
1995 V.1(4)



Oil Gas and Petrochemicals. English, Iranian
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2001 (1-10)



Oklahoma Geology Notes. 1941. English,
Bimonthly. Oklahoma Geological Survey, U.S.A.
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1993 (V.53)



O M S-Organic Mass Spectrometry. 1968. English,
Monthly. John Wiley & Sons Ltd., United
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ISSN: 0030-493X
1.Chemistry_Analytical chemistry. 
1993 (V.28)



ONLINE & CD-ROM REVIEW. ENGLISH, 6 TIMES A
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1.Computer-Intemet. 
1999 V. 23(1-6)



Online Information Review. English, 6 times a
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2000 V.24(1-6), 2001 V.25(2-6)


On the complexity of a PL Homotopy Algorithm
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Gao Tang'an; Wang Zeke. "On the complexity of a
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OPEC Bulletin. English, Bimonthly. Australia.
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1994 V.25(Nov)


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1995 (V.25), 1997 (V.27), 1998 V.28(1-4) 1999
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Optical and Quantom Electronics. 1969. Multi
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1.Physics_Optics. 


Optical Engineering. 1962. English, Monthly.
Internationl Society for Optical Engineering,
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1995 (V.34), 1997 (V.36), 1998 (V.37), 1999
V.38(1-12), 2000 V.39(1-12), 2001 V.40(7-12)


Optics and Lasers in Engineering. English, 10
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1993 V.18(1-2, 4), 1995 V.22(1-5), V.23(1-5),
1996 (V.24-25), 1997 (V.26-28), 1998 V.29(1-6),
V.30(1-6), 1999 V.31(1-6), V.32(1-6), 2000
V.33(1-6), 2001 V.34(1-6), V.35(1-6), V.36(1-6)


Optics and Laser Technology. 1968. English,
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1995 (V.27), 1996 (V.28), 1997 (V.29), 1998
V.30(1-8), 1999 V.31(1-8), 2000 V.32(1-8), 2001
V.33(1-8)


Optoelectronics, Instrumentation and Data
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Allerton Press,Inc., U.S.A.
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1.Electronics. 2.Instruments. 
1993 (V.93), 1994 (V.94), 1995 (V.95), 2000
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Oregon Geology. 1939. English, Bimonthly.
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1.Earth sciences_Geology. 
1993 (V.55), 1995 (V.57), 1997 (V.59), 1998
V.60(1-6) 1999 V. 61(3-6), 2000 V.62(1-4), 2001
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Organic Letters. English, 26 times a year.
American Chemical Society, U.S.A.
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2000 V.2(2-26)


Organic Process Research & Development.
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1.Chemistry-Organic Chemistry. 
1999 V.3(1-6), 2000 V.4(1-6), 2001 V.5(1-3, 5-6)


Organic Reactions. 1942. English, Annual. John
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1.Chemistry_Organic chemistry. 
1993 (V.43), 1995 (V.47), 1997 (V.49), 1999
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Organic Syntheses. 1990. English, Annual. John
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1.Chemistry_Organic chemistry. 
1993 (V.71)


Organizational Dynamics. English, Quarterly.
American Management Association, U.S.A.
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1.Business and Economics.Managment. 
1999 V.27(4), V.28(1-2), 2000 V.28(3-4),
V.29(1-2), 2001 V.29(3-4), V.30(1-2)


Organization Development Journal. English, 4
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1.Business and Economics-Managment;Business
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1999 V.17(1-4), 2000 V.18(1-4), 2001 V.19(1-4)


Oriental Insects. English, Annual. Associated
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2000 (V.34), 2001 (V.35)


Origins of Life and Evolution of the Biosphere.
1968. English, Bimonthly. Kluwer Academic
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1.Biology. 
1993 (V.23)


Ornamental Horticulture. 1975. English,
Bimonthly. Cab International, U.K.
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1.Gardening and horticulture_Abstracting,
Bibliographies, Statistics. 2.Abstracting and
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1995 (V.21,Annual Index) 1999 V.25(1-6, Index),
2000 V.26(1-6), 2001 V.27(1-6)


Osaka Journal of Mathematics. 1964. Multi
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Daigaku,Rigakubu Sugaku Kyoshitsu_Osaka
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1.Mathematics. 
1999 V.36(1-4), 2000 V.37(2-4), 2001 V.38(3-4)


Oxidation Communications. 1977. English,
Quarterly. Bulgarian Academy of
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Bulgarian.
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1.Chemistry_Organic chemistry. 
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Oxidation of Metals. 1969. English, Bimonthly.
Plenum Press, U.S.A.
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1993 (V.39-40)