Harr, W. C. (1946). The Negro as an American Protestant missionary in Africa.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHarr, Wilber Christian. The Negro as an American Protestant Missionary in Africa. Chicago, 1946.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHarr, Wilber Christian. The Negro as an American Protestant Missionary in Africa. 1946.
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