International Labour Office. (1998). International labour standards: A workers' education manual (4th (rev.) ed.). International Labour Office.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Labour Office. International Labour Standards: A Workers' Education Manual. 4th (rev.) ed. Geneva: International Labour Office, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रInternational Labour Office. International Labour Standards: A Workers' Education Manual. 4th (rev.) ed. International Labour Office, 1998.
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