Herskovits, Melville J. The human factor in changing Africa. - [1st ed.] - New York Knopf 1962. - 500 p. illus. 22 cm. Includes bibliography. LCCN: 62012496 /L/r84 Subjects--Geographic Terms: 5Africa, Sub-Saharan LC Class. No.: DT352 / .H43 Dewey Class. No.: 967