Dyfyniad APA

Paul Lang, V. (1979). Principles of air conditioning. CBS.

Dyfyniad Arddull Chicago

Paul Lang, V. Principles of Air Conditioning. Delhi: CBS, 1979.

Dyfyniad MLA

Paul Lang, V. Principles of Air Conditioning. CBS, 1979.

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