Proceedings of the United Nations Interregional Seminar on Petroleum Refining in Developing Countries, New Delhi, 22 January-3 February 1973 / United Nations Interregional Seminar on Petroleum Refining in Developing Countries, (1973 : New Delhi, India) United Nations. Indian Oil Corporation. Petroleum Developing countries Refining Congresses. 665.5 UNP "Printed in India at Thomson Press (India) Limited, Faridabad, Haryana"--Verso t.p. Includes bibliographical references. India : Indian Oil Corporation of the Government of India with the cooperation of the United Nations, 1973. 1973. 1973 Text 2 v. : eng