APA

Certo S. C., . (2013). Supervision: Concepts and skill-building. : McGraw-Hill Education.

Chicago

Certo Samuel C, . 2013. Supervision: Concepts and skill-building. : McGraw-Hill Education.

Harvard

Certo S. C., . (2013). Supervision: Concepts and skill-building. : McGraw-Hill Education.

MLA

Certo Samuel C, . Supervision: Concepts and skill-building. : McGraw-Hill Education. 2013.