Dyfyniad APA

Nobile, P., & Deedy, J. (1972). The complete ecology fact book. Anchor Books.

Dyfyniad Arddull Chicago

Nobile, Philip, and John Deedy. The Complete Ecology Fact Book. Garden City, NY: Anchor Books, 1972.

Dyfyniad MLA

Nobile, Philip, and John Deedy. The Complete Ecology Fact Book. Anchor Books, 1972.

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