Gaya APA

Engineers, S, O, P. (1970). Oil and Gas property evaluation and reserve estimates. Petroleum Transaction series no.3 (1970). : Oklohama : SPE,.

Gaya MLA

Engineers, Society, Of, Petroleum. "Oil and Gas property evaluation and reserve estimates. Petroleum Transaction series no.3". 1970 : Oklohama : SPE,, 1970. Text.