Gaya APA

Engineers, S, O, P. (1987). Eor field case histories. SPE reprint series no. 23 (1987). : Richardson : Sociatey of Petroleum Engineers,.

Gaya MLA

Engineers, Society, Of, Petroleum. "Eor field case histories. SPE reprint series no. 23". 1987 : Richardson : Sociatey of Petroleum Engineers,, 1987. Text.