Dyfyniad APA

Milne, L. J., & Milne, M. (1968). The Ages of Life. New York: Harcourt, Brace & World.

Dyfyniad Arddull Chicago

Milne, Lorus J., và Margery Milne. The Ages of Life. New York: Harcourt, Brace & World, 1968.

Dyfyniad MLA

Milne, Lorus J., và Margery Milne. The Ages of Life. New York: Harcourt, Brace & World, 1968.

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