Dyfyniad APA

Rafferty, J. P. (2011). Conservation and ecology. Britannica Educational Pub. in association with Rosen Educational Services.

Dyfyniad Arddull Chicago

Rafferty, John P. Conservation and Ecology. New York, NY: Britannica Educational Pub. in association with Rosen Educational Services, 2011.

Dyfyniad MLA

Rafferty, John P. Conservation and Ecology. Britannica Educational Pub. in association with Rosen Educational Services, 2011.

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