Dyfyniad APA
Lake, L. W., & Warner, H. R. (2007). Petroleum engineering handbook. Society Of Petroleum Engineers.
Dyfyniad Arddull Chicago
Lake, Larry W., and H. R. Warner. Petroleum Engineering Handbook. Richardson, TX: Society Of Petroleum Engineers, 2007.
Dyfyniad MLA
Lake, Larry W., and H. R. Warner. Petroleum Engineering Handbook. Society Of Petroleum Engineers, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.