Dyfyniad APA

Hersen, M. (1977). Progress in behavior modification. Academic Press.

Dyfyniad Arddull Chicago

Hersen, Michel. Progress in Behavior Modification. New York: Academic Press, 1977.

Dyfyniad MLA

Hersen, Michel. Progress in Behavior Modification. Academic Press, 1977.

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