Dyfyniad APA

Goldsmith, T. H. (2001). Biology, evolution and human nature. New York: John Wiley and Sons.

Dyfyniad Arddull Chicago

Goldsmith, Timothy H. Biology, Evolution and Human Nature. New York: John Wiley and Sons, 2001.

Dyfyniad MLA

Goldsmith, Timothy H. Biology, Evolution and Human Nature. New York: John Wiley and Sons, 2001.

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