Cita APA

Ellis, L. E. (1951). A Short history of American diplomacy. New York, New York: Harper.

Citación estilo Chicago

Ellis, L. Ethan. A Short History of American Diplomacy. New York, New York: Harper, 1951.

Cita MLA

Ellis, L. Ethan. A Short History of American Diplomacy. New York, New York: Harper, 1951.