Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.