Cita APA (7a ed.)

Robertson, W. S. (1922). History of the Latin-American Nations. D. Appleton & Cy..

Cita Chicago Style (17a ed.)

Robertson, William Spence. History of the Latin-American Nations. New York: D. Appleton & Cy., 1922.

Cita MLA (8a ed.)

Robertson, William Spence. History of the Latin-American Nations. D. Appleton & Cy., 1922.