Citazione Stile APA (7a Edizione)

Gibson, R. L., & Mitchell, M. (1999). Introduction to counseling and guidance (5th ed.). Merrill.

Citazione stile Chigago Style (17a edizione)

Gibson, Robert L., e Marianne Mitchell. Introduction to Counseling and Guidance. 5th ed. New Jersey: Merrill, 1999.

Citatione MLA (9a ed.)

Gibson, Robert L., e Marianne Mitchell. Introduction to Counseling and Guidance. 5th ed. Merrill, 1999.