Dyfyniad APA

Steinhart, C. E., & Steinhart, J. S. (1974). Energy: Sources, use, and role in human affairs. Duxbury Press.

Dyfyniad Arddull Chicago

Steinhart, Carol E., and John S. Steinhart. Energy: Sources, Use, and Role in Human Affairs. North Scituate, Mass.: Duxbury Press, 1974.

Dyfyniad MLA

Steinhart, Carol E., and John S. Steinhart. Energy: Sources, Use, and Role in Human Affairs. Duxbury Press, 1974.

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