Dyfyniad APA

Belcher, D. M. (1973). Giving psychology away. Canfield Press.

Dyfyniad Arddull Chicago

Belcher, Duane M. Giving Psychology Away. San Francisco: Canfield Press, 1973.

Dyfyniad MLA

Belcher, Duane M. Giving Psychology Away. Canfield Press, 1973.

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