Obieta Joseph A : The international status of the Suez canal.
1960
1
Obiji Florence Chijindu : An investigation into aspects of audio-visual materials and their use in the secondary schools of Nigeria with particular reference to Imo State.
Oblatt R : Reagents in the minerals industry : papers presented at the Reagents in the Minerals Industry Conference organized by the Institution of Mining and Metallurgy in association with the Consiglio nazionale delle ricerche, Istituto per il trattamento dei minerali and held in Rome, from 18 to 21 September 1984.
Obrador Pons Pau : Cultures of mass tourism : doing the Mediterranean in the age of banal mobilities / edited by Pau Obrador Pons, Mike Crang and Penny Travlou.
2009
1
Obradovic D Daniela : Interface between EU law and national law : proceedings of the annual colloquium of the G.K. van Hogendorp Centre for European Constitutional Studies / edited by D. Obradovic and N. Lavranos.
