Cita APA (7a ed.)

Hartmann, F. H. (1973). The relations of nations (4th ed.). MacMillan [etc.].

Cita Chicago Style (17a ed.)

Hartmann, Frederick H. The Relations of Nations. 4th ed. New York [etc.]: MacMillan [etc.], 1973.

Cita MLA (9a ed.)

Hartmann, Frederick H. The Relations of Nations. 4th ed. MacMillan [etc.], 1973.