Dyfyniad APA

Bates, M. (1954). The nature of natural history. Charles Scribner's Sons.

Dyfyniad Arddull Chicago

Bates, Marston. The Nature of Natural History. New York: Charles Scribner's Sons, 1954.

Dyfyniad MLA

Bates, Marston. The Nature of Natural History. Charles Scribner's Sons, 1954.

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