Dyfyniad APA

Kemp, D. D. (1994). Global Environmental Issues A Oil Matological Approach David D. Kemp. Routledge.

Dyfyniad Arddull Chicago

Kemp, David D. Global Environmental Issues A Oil Matological Approach David D. Kemp. Routledge, 1994.

Dyfyniad MLA

Kemp, David D. Global Environmental Issues A Oil Matological Approach David D. Kemp. Routledge, 1994.

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