Dyfyniad APA

Raymond Frederic Dasmann. (1984). Environmental conservation. New York: John Wiley.

Dyfyniad Arddull Chicago

Raymond Frederic Dasmann. Environmental Conservation. New York: John Wiley, 1984.

Dyfyniad MLA

Raymond Frederic Dasmann. Environmental Conservation. New York: John Wiley, 1984.

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