Citazione Stile APA (7a Edizione)

Danish, S. J., D'Augelli, A. R., & Hauer, A. L. (1980). Helping skills: A basic training program (2nd ed.). Human Sciences Press.

Citazione stile Chigago Style (17a edizione)

Danish, Steven J., Anthony R. D'Augelli, e Allen L. Hauer. Helping Skills: A Basic Training Program. 2nd ed. New York: Human Sciences Press, 1980.

Citatione MLA (8a ed.)

Danish, Steven J., et al. Helping Skills: A Basic Training Program. 2nd ed. Human Sciences Press, 1980.