Citazione Stile APA (7a Edizione)

Wiger, D. E., & Harowski, K. J. (2003). Essential of crisis counseling and intervention. Wiley.

Citazione stile Chigago Style (17a edizione)

Wiger, Donald E., e Kathy J. Harowski. Essential of Crisis Counseling and Intervention. New MJersey: Wiley, 2003.

Citatione MLA (9a ed.)

Wiger, Donald E., e Kathy J. Harowski. Essential of Crisis Counseling and Intervention. Wiley, 2003.