Dyfyniad APA

Bulletin of the American Museum of Natural History. American Museum of Natural History.

Dyfyniad Arddull Chicago

Bulletin of the American Museum of Natural History. New York: American Museum of Natural History.

Dyfyniad MLA

Bulletin of the American Museum of Natural History. American Museum of Natural History.

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