Cunningham, S. (1981). The copper industry in Zambia: Foreign mining companies in a developing country. Praeger.
Citazione stile Chigago Style (17a edizione)Cunningham, Simon. The Copper Industry in Zambia: Foreign Mining Companies in a Developing Country. New York: Praeger, 1981.
Citatione MLA (9a ed.)Cunningham, Simon. The Copper Industry in Zambia: Foreign Mining Companies in a Developing Country. Praeger, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.