Cita APA (7th ed.)
Society of Petroleum Engineers. (1997). Drilling fluids. Society of Petroleum Engineers.
Cita Chicago (17th ed.)
Society of Petroleum Engineers. Drilling Fluids. Texas: Society of Petroleum Engineers, 1997.
Cita MLA (9th ed.)
Society of Petroleum Engineers. Drilling Fluids. Society of Petroleum Engineers, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.