International Labour Research and Information Group (ILRIG). ILRIG: Workers of the world unite : resource service and catalogue. Sout Africa: ILRIG.
Lua i Stíl Chicago (17ú heag.)International Labour Research and Information Group (ILRIG). ILRIG: Workers of the World Unite : Resource Service and Catalogue. Sout Africa: ILRIG.
Lua MLA (8ú heag.)International Labour Research and Information Group (ILRIG). ILRIG: Workers of the World Unite : Resource Service and Catalogue. Sout Africa: ILRIG.
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