APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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