Citazione Stile APA (7a Edizione)

Gysbers, N. C., Heppner, M. J., & Johnston, J. A. (1998). Career counseling: Process, issues and techniques. Allyn and Bacon.

Citazione stile Chigago Style (17a edizione)

Gysbers, Norman C., Mary J. Heppner, e Joseph A. Johnston. Career Counseling: Process, Issues and Techniques. Boston: Allyn and Bacon, 1998.

Citatione MLA (9a ed.)

Gysbers, Norman C., et al. Career Counseling: Process, Issues and Techniques. Allyn and Bacon, 1998.