Harr, W. C. (1946). The Negro as an American Protestant missionary in Africa.
Chicago Style aipamenaHarr, Wilber Christian. The Negro as an American Protestant Missionary in Africa. Chicago, 1946.
MLA aipamenaHarr, Wilber Christian. The Negro as an American Protestant Missionary in Africa. 1946.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.