Dyfyniad APA

Yuill, B. (1974). Supervision: Principles and techniques (3rd ed.). West Publishing Corporation.

Dyfyniad Arddull Chicago

Yuill, Bruce. Supervision: Principles and Techniques. 3rd ed. Sydney: West Publishing Corporation, 1974.

Dyfyniad MLA

Yuill, Bruce. Supervision: Principles and Techniques. 3rd ed. West Publishing Corporation, 1974.

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