Dyfyniad APA

Whitman, W. C. (2009). Refrigeration & air conditioning technology (6th ed.). DELMAR.

Dyfyniad Arddull Chicago

Whitman, William C. Refrigeration & Air Conditioning Technology. 6th ed. Australia: DELMAR, 2009.

Dyfyniad MLA

Whitman, William C. Refrigeration & Air Conditioning Technology. 6th ed. DELMAR, 2009.

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