Dyfyniad APA

Alden, J. L. (1982). Design of industrial Ventilation systems (5th Ed.). Industrial press.

Dyfyniad Arddull Chicago

Alden, John Leslie. Design of Industrial Ventilation Systems. 5th Ed. New York: Industrial press, 1982.

Dyfyniad MLA

Alden, John Leslie. Design of Industrial Ventilation Systems. 5th Ed. Industrial press, 1982.

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