Cita APA (7th ed.)
Certo, S. C. (2000). Supervision: Concepts and skill building (3rd ed.). Irwin.
Cita Chicago (17th ed.)
Certo, Samuel C. Supervision: Concepts and Skill Building. 3rd ed. Illinois: Irwin, 2000.
Cita MLA (9th ed.)
Certo, Samuel C. Supervision: Concepts and Skill Building. 3rd ed. Irwin, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.