Dyfyniad APA

(1999). Panbiogeography tracking the history of life / Robin C. Craw, John R. Grehan, and Michael J. Heads. [electronic resource].

Dyfyniad Arddull Chicago

Panbiogeography Tracking the History of Life / Robin C. Craw, John R. Grehan, and Michael J. Heads. [electronic Resource]. 1999.

Dyfyniad MLA

Panbiogeography Tracking the History of Life / Robin C. Craw, John R. Grehan, and Michael J. Heads. [electronic Resource]. 1999.

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