Dyfyniad APA
Lee, J., & Wattenbarger, R. A. (1996). Gas Reservoir Engineering. Society of Petroleum Engineers.
Dyfyniad Arddull Chicago
Lee, John, and Robert A. Wattenbarger. Gas Reservoir Engineering. Texas: Society of Petroleum Engineers, 1996.
Dyfyniad MLA
Lee, John, and Robert A. Wattenbarger. Gas Reservoir Engineering. Society of Petroleum Engineers, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.