International Labour Office. (1972). The contribution of the ILO to workers education. International Labour Office.
शिकागो स्टाइल उद्धरणInternational Labour Office. The Contribution of the ILO to Workers Education. Geneva: International Labour Office, 1972.
एमएलए उद्धरणInternational Labour Office. The Contribution of the ILO to Workers Education. International Labour Office, 1972.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.