Evans, J. (1986). OPEC, its member states and the world energy market. Longman.
Chicago Style (17th ed.) CitationEvans, John. OPEC, Its Member States and the World Energy Market. Harlow, Essex, U.K: Longman, 1986.
MLA (9th ed.) CitationEvans, John. OPEC, Its Member States and the World Energy Market. Longman, 1986.
Warning: These citations may not always be 100% accurate.