Gaya APA

McCaslin, J, (. (1979). International petroleum encyclopedia. Vol.12, 1979 (1979). : Tulsa : Petroleum Publ. Co.,.

Gaya MLA

McCaslin, John, (Editor). "International petroleum encyclopedia. Vol.12, 1979". 1979 : Tulsa : Petroleum Publ. Co.,, 1979. Text.