Dyfyniad APA

Bernhard, H. J. (1956). Wonders of the world. New York: Simon and Schuster.

Dyfyniad Arddull Chicago

Bernhard, Hubert J. Wonders of the World. New York: Simon and Schuster, 1956.

Dyfyniad MLA

Bernhard, Hubert J. Wonders of the World. New York: Simon and Schuster, 1956.

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