Gaya APA

Pub.Co., T, P, E. (1971). Refining and gas processing; 1971 1972 (1971). : Tulsa, The Petroleum Engineer Pub. Co.,.

Gaya MLA

Pub.Co., The, Petroleum, Engineer. "Refining and gas processing; 1971 1972". 1971 : Tulsa, The Petroleum Engineer Pub. Co.,, 1971. Text.