Dyfyniad APA

(1961). Counselor education and supervision. Alexandria, Va.: American Counseling Association.

Dyfyniad Arddull Chicago

Counselor Education and Supervision. Alexandria, Va.: American Counseling Association, 1961.

Dyfyniad MLA

Counselor Education and Supervision. Alexandria, Va.: American Counseling Association, 1961.

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