Letter to the Hon. Henry Clay, president of the American Colonization Society, and Sir Thomas Fowell Buxton, chairman of the General Committee of the African Civilization Society, on the colonization and civilization of Africa with other documents on the same subject - Gurley, Ralph Randolph 1797-1872 (Wiley and Putnam, 1841)
Goldsmiths'-Kress no. 32176. - OCLC, 18099957. - Reproduction of original from Goldsmiths' Library, University of London