Dyfyniad APA

Scheinfeld, A. (1965). Your heredity and environment. Lippincott.

Dyfyniad Arddull Chicago

Scheinfeld, Amram. Your Heredity and Environment. Philadelphia: Lippincott, 1965.

Dyfyniad MLA

Scheinfeld, Amram. Your Heredity and Environment. Lippincott, 1965.

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