Dyfyniad APA

Wilson, E. O. (1993). The diversity of life. W.W.Nortonand company.

Dyfyniad Arddull Chicago

Wilson, Edward O. The Diversity of Life. New York: W.W.Nortonand company, 1993.

Dyfyniad MLA

Wilson, Edward O. The Diversity of Life. W.W.Nortonand company, 1993.

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