Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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