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The State of African demography
edited by Etienne van de Walle, Patrick O...
Bok Engelsk 1988
The population of Zambia
Patrick O. Ohadike and Habtemariam Tesfag...
Bok Engelsk 1975
Development of and factors in the employment of African migrants in the copper mines of Zambia : 1940-66
by Patrick O. Ohadike
Bok Engelsk 1969