Henderson, P., & Gysbers, N. C. (2000). Developing and managing your school guidance program (3rd ed.). Alexandria, VA: American Counseling Association.
Παραπομπή Chicago StyleHenderson, Patricia., και Norman C. Gysbers. Developing and Managing Your School Guidance Program. 3rd ed. Alexandria, VA: American Counseling Association, 2000.
Παραπομπή MLAHenderson, Patricia., και Norman C. Gysbers. Developing and Managing Your School Guidance Program. 3rd ed. Alexandria, VA: American Counseling Association, 2000.
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