Gaya APA

Engineers, S, O, P. (1990). Formation damage. SPE reprint series no. 29. (1990). : Richardson:Sociatey of Petroleum Engineers,.

Gaya MLA

Engineers, Society, Of, Petroleum. "Formation damage. SPE reprint series no. 29.". 1990 : Richardson:Sociatey of Petroleum Engineers,, 1990. Text.