Gaya APA

McCaslin, J, (. (1976). International petroleum encyclopedia. Volume 9, 1976 (1976). : Tulsa : The Petroleum Publ. Co.,.

Gaya MLA

McCaslin, John, (Editor). "International petroleum encyclopedia. Volume 9, 1976". 1976 : Tulsa : The Petroleum Publ. Co.,, 1976. Text.