Guigui, A. (1972). The contribution of the ILO to workers education, 1919-1970. International Labour Office.
Lua i Stíl Chicago (17ú heag.)Guigui, Albert. The Contribution of the ILO to Workers Education, 1919-1970. Geneva: International Labour Office, 1972.
Lua MLA (8ú heag.)Guigui, Albert. The Contribution of the ILO to Workers Education, 1919-1970. International Labour Office, 1972.
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