Cita APA (7a ed.)

Leonard, L. L. (1951). International organization (1st ed., 2nd impression.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Leonard, Leoanrd L. International Organization. 1st ed., 2nd impression. New York [etc.]: McGraw-Hill, 1951.

Cita MLA (9a ed.)

Leonard, Leoanrd L. International Organization. 1st ed., 2nd impression. McGraw-Hill, 1951.