Cita APA (7a ed.)

Hartmann, F. H. (1978). The relations of nations (Second edition.). Macmillan.

Cita Chicago Style (17a ed.)

Hartmann, Frederick H. The Relations of Nations. Second edition. New York: Macmillan, 1978.

Cita MLA (9a ed.)

Hartmann, Frederick H. The Relations of Nations. Second edition. Macmillan, 1978.