Zwanenberg, R. (1975). Colonial capitalism and labour in Kenya 1919 - 1939. East African literature bureau.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZwanenberg, R.M.A. Colonial Capitalism and Labour in Kenya 1919 - 1939. Kampala: East African literature bureau, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रZwanenberg, R.M.A. Colonial Capitalism and Labour in Kenya 1919 - 1939. East African literature bureau, 1975.
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