Citazione Stile APA (7a Edizione)

Gysbers, N. C., Heppner, M. J., & Johnston, J. A. (2002). Career counseling: Process, issues and techniques (2nd ed.). Allyn & Bacon.

Citazione stile Chigago Style (17a edizione)

Gysbers, Norman C., Mary J. Heppner, e Joseph A. Johnston. Career Counseling: Process, Issues and Techniques. 2nd ed. Boston, N.Y: Allyn & Bacon, 2002.

Citatione MLA (9a ed.)

Gysbers, Norman C., et al. Career Counseling: Process, Issues and Techniques. 2nd ed. Allyn & Bacon, 2002.