Dyfyniad APA

Calder, R. (1961). After the seventh day: The world man created. Simon and Schuster.

Dyfyniad Arddull Chicago

Calder, Ritchie. After the Seventh Day: The World Man Created. New York: Simon and Schuster, 1961.

Dyfyniad MLA

Calder, Ritchie. After the Seventh Day: The World Man Created. Simon and Schuster, 1961.

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