Dyfyniad APA

John Beloff. (1973). Psychological sciences. Crosby Lockwood Staples.

Dyfyniad Arddull Chicago

John Beloff. Psychological Sciences. London: Crosby Lockwood Staples, 1973.

Dyfyniad MLA

John Beloff. Psychological Sciences. Crosby Lockwood Staples, 1973.

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