Cita APA (7a ed.)

Society of Petroleum Engineers. (1991). APPLIED drilling engineering (2nd. Printing.). Society of Petroleum Engineers.

Cita Chicago Style (17a ed.)

Society of Petroleum Engineers. APPLIED Drilling Engineering. 2nd. Printing. Texas: Society of Petroleum Engineers, 1991.

Cita MLA (8a ed.)

Society of Petroleum Engineers. APPLIED Drilling Engineering. 2nd. Printing. Society of Petroleum Engineers, 1991.