Gaya APA

Berger, B, D., Anderson, K, E. (1978). Modern petroleum : a basic primer of the industry. (1978). : Tulsa Oklohama : PennWell Books,.

Gaya MLA

Berger, Bill, D.., Anderson, Kenneth, E.. "Modern petroleum : a basic primer of the industry.". 1978 : Tulsa Oklohama : PennWell Books,, 1978. Text.