Cita APA

Cordier, R. W., & Robert, E. B. (1949). History of world peoples. Rand McNally.

Citación estilo Chicago

Cordier, Ralph Waldo, and E. B. Robert. History of World Peoples. New York: Rand McNally, 1949.

Cita MLA

Cordier, Ralph Waldo, and E. B. Robert. History of World Peoples. Rand McNally, 1949.