Dyfyniad APA

Corbitt, R. A. (1990). Standard handbook of environmental engineering. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Corbitt, Robert A. Standard Handbook of Environmental Engineering. New York: McGraw-Hill, 1990.

Dyfyniad MLA

Corbitt, Robert A. Standard Handbook of Environmental Engineering. New York: McGraw-Hill, 1990.

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