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1Publicado em 1970[Johannesburg] : South African Institute of Race Relations, [197-?]1 microfilm reel ; 16 mm.“...Trade Union Council of South Africa...”
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2Chicago, Ill., Photographed for the Cooperative Africana Microform Project of the Center for Research Libraries by the University of Chicago, Photoduplication Dept., [ 19--?]101 microfilm reels ; 35 mm.“...Trade Union Council of South Africa...”
