Crush, J., Jeeves, A., & Yudelman, D. (1991). South Africa's labor empire: A history of Black migrancy to the gold mines. Westview Press.
Lua i Stíl Chicago (17ú heag.)Crush, Jonathan, Alan Jeeves, agus David Yudelman. South Africa's Labor Empire: A History of Black Migrancy to the Gold Mines. Boulder: Westview Press, 1991.
Lua MLA (8ú heag.)Crush, Jonathan, et al. South Africa's Labor Empire: A History of Black Migrancy to the Gold Mines. Westview Press, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.