Christy, D. (1853). A lecture on African civilization: Including a brief outline of the social and moral conditition of Africa ; and the relations of American slavery to African civilization. Columbus: J.H. Riley & Co..

Christy, David. A Lecture On African Civilization: Including a Brief Outline of the Social and Moral Conditition of Africa ; and the Relations of American Slavery to African Civilization. Columbus: J.H. Riley & Co., 1853.

Christy, David. A Lecture On African Civilization: Including a Brief Outline of the Social and Moral Conditition of Africa ; and the Relations of American Slavery to African Civilization. Columbus: J.H. Riley & Co., 1853.