APA (7e ed.) Bronvermelding
Society of Petroleum Engineers. (1997). Drilling fluids. Society of Petroleum Engineers.
Chicago (17e ed.) Bronvermelding
Society of Petroleum Engineers. Drilling Fluids. Texas: Society of Petroleum Engineers, 1997.
MLA (9e ed.) Bronvermelding
Society of Petroleum Engineers. Drilling Fluids. Society of Petroleum Engineers, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.