Gaya APA

Engineers, S, O, P. (1992). Health & safety. SPE reprint series no. 36. (1992). : Richardson: Sociatey of Petroleum Engineers,.

Gaya MLA

Engineers, Society, Of, Petroleum. "Health & safety. SPE reprint series no. 36.". 1992 : Richardson: Sociatey of Petroleum Engineers,, 1992. Text.