Dyfyniad APA

Certo, S. C. (2000). Supervision: Concepts and skill building (3rd ed.). Irwin.

Dyfyniad Arddull Chicago

Certo, Samuel C. Supervision: Concepts and Skill Building. 3rd ed. Illinois: Irwin, 2000.

Dyfyniad MLA

Certo, Samuel C. Supervision: Concepts and Skill Building. 3rd ed. Irwin, 2000.

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