Proceedings of the Ninth World Petroleum Congress. Volume 7 Index. - World Petroleum Congress (London : Applied Science Publishers, LTD, 1976)
Vol. 1--General V. 2-- Geology V. 3-- Exploration and transportation V. 4-- Drilling and production V. 5-- Processing and storage V.6-- Conservation and safety V. 7--Index.
Keywords: Petroleum -- Congresses