APA
Clarke D. G., . (1980). Foreign companies and international investment in Zimbabwe. London: Catholic Institute for International Relations.
Chicago
Clarke Duncan G, . 1980. Foreign companies and international investment in Zimbabwe. London: Catholic Institute for International Relations.
Harvard
Clarke D. G., . (1980). Foreign companies and international investment in Zimbabwe. London: Catholic Institute for International Relations.
MLA
Clarke Duncan G, . Foreign companies and international investment in Zimbabwe. London: Catholic Institute for International Relations. 1980.