APA-referens (7:e uppl.)

Certo, S. C. (2016). Supervision: Concepts and skill-building (Ninth edition.). McGraw-Hill Education.

Chicago-referens (17:e uppl.)

Certo, Samuel C. Supervision: Concepts and Skill-building. Ninth edition. New York: McGraw-Hill Education, 2016.

MLA-referens (9:e uppl.)

Certo, Samuel C. Supervision: Concepts and Skill-building. Ninth edition. McGraw-Hill Education, 2016.