APA

Foster W. Z., . (1951). Outline political history of the Americas. New York: International Publishers.

Chicago

Foster William Z, . 1951. Outline political history of the Americas. New York: International Publishers.

Harvard

Foster W. Z., . (1951). Outline political history of the Americas. New York: International Publishers.

MLA

Foster William Z, . Outline political history of the Americas. New York: International Publishers. 1951.