International Labour Office. (1972). The contribution of the ILO to workers education. International Labour Office.
استشهاد بنمط شيكاغوInternational Labour Office. The Contribution of the ILO to Workers Education. Geneva: International Labour Office, 1972.
MLA استشهادInternational Labour Office. The Contribution of the ILO to Workers Education. International Labour Office, 1972.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.