Dyfyniad APA

(1982). Environmental control principles: An educational supplement to ASHRAE handbook 1981 fundamentals volume. Ga., ASHRAE.

Dyfyniad Arddull Chicago

Environmental Control Principles: An Educational Supplement to ASHRAE Handbook 1981 Fundamentals Volume. Atlanta: Ga., ASHRAE, 1982.

Dyfyniad MLA

Environmental Control Principles: An Educational Supplement to ASHRAE Handbook 1981 Fundamentals Volume. Ga., ASHRAE, 1982.

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