Dyfyniad APA

(1960). Background and foreground. Great Neck, N.Y: Channel Press.

Dyfyniad Arddull Chicago

Background and Foreground. Great Neck, N.Y: Channel Press, 1960.

Dyfyniad MLA

Background and Foreground. Great Neck, N.Y: Channel Press, 1960.

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