Dyfyniad APA

Gary, J. H., & Handwerk, G. E. (2001). Petroleum refining: Technology and economics (4a. ed.). Marcel Dekker.

Dyfyniad Arddull Chicago

Gary, James H., and Glenn E. Handwerk. Petroleum Refining: Technology and Economics. 4a. ed. Nueva York: Marcel Dekker, 2001.

Dyfyniad MLA

Gary, James H., and Glenn E. Handwerk. Petroleum Refining: Technology and Economics. 4a. ed. Marcel Dekker, 2001.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.