Cunningham, S. (1981). The copper industry in Zambia: Foreign mining companies in a developing country. Praeger.
Lua i Stíl Chicago (17ú heag.)Cunningham, Simon. The Copper Industry in Zambia: Foreign Mining Companies in a Developing Country. New York: Praeger, 1981.
Lua MLA (9ú heag.)Cunningham, Simon. The Copper Industry in Zambia: Foreign Mining Companies in a Developing Country. Praeger, 1981.
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