Henderson, P., & Gysbers, N. C. (2000). Developing and managing your school guidance program (3rd ed.). Alexandria, VA: American Counseling Association.
Chicago Style aipamenaHenderson, Patricia., và Norman C. Gysbers. Developing and Managing Your School Guidance Program. 3rd ed. Alexandria, VA: American Counseling Association, 2000.
MLA aipamenaHenderson, Patricia., và Norman C. Gysbers. Developing and Managing Your School Guidance Program. 3rd ed. Alexandria, VA: American Counseling Association, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.