APA (7th ed.) Citation

Johnston, H. H. (1913). A history of the colonization of Africa by alien races (2nd and enl. ed.). Camb. U.P..

Chicago Style (17th ed.) Citation

Johnston, Harry Hamilton. A History of the Colonization of Africa by Alien Races. 2nd and enl. ed. Camb.: Camb. U.P., 1913.

MLA (8th ed.) Citation

Johnston, Harry Hamilton. A History of the Colonization of Africa by Alien Races. 2nd and enl. ed. Camb. U.P., 1913.