Gaya APA

Engineers, S, O, P. (1989). Transactions of the socierty of petroleum engineers vol. 285 1988. (1989). : Richardson : Society of Petroleum Engineers,.

Gaya MLA

Engineers, Society, Of, Petroleum. "Transactions of the socierty of petroleum engineers vol. 285 1988.". 1989 : Richardson : Society of Petroleum Engineers,, 1989. Text.