Dyfyniad APA

Greene, H. W. (1997). Snakes: The Evolution of Mystery in Nature. University of California.

Dyfyniad Arddull Chicago

Greene, Harry W. Snakes: The Evolution of Mystery in Nature. Berkeley: University of California, 1997.

Dyfyniad MLA

Greene, Harry W. Snakes: The Evolution of Mystery in Nature. University of California, 1997.

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