Dyfyniad APA

Leonard, E. C. (2010). Supervision: Concepts and practices of management (11th ed.). South-Western/Cengage.

Dyfyniad Arddull Chicago

Leonard, Edwin C. Supervision: Concepts and Practices of Management. 11th ed. Mason, OH: South-Western/Cengage, 2010.

Dyfyniad MLA

Leonard, Edwin C. Supervision: Concepts and Practices of Management. 11th ed. South-Western/Cengage, 2010.

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