Παραπομπή APA

International Labour Office. (1972). The contribution of the ILO to workers education. International Labour Office.

Παραπομπή Chicago Style

International Labour Office. The Contribution of the ILO to Workers Education. Geneva: International Labour Office, 1972.

Παραπομπή MLA

International Labour Office. The Contribution of the ILO to Workers Education. International Labour Office, 1972.