International Labor Office. (1974). Human resources development: Vocational guidance and vocational training. International Labor Office.
Chicago Style aipamenaInternational Labor Office. Human Resources Development: Vocational Guidance and Vocational Training. Geneva: International Labor Office, 1974.
MLA aipamenaInternational Labor Office. Human Resources Development: Vocational Guidance and Vocational Training. International Labor Office, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.