Cita APA (7a ed.)
Hartman, F. H. (1973). The relations of nation (4th ed.). Macmillan Company.
Cita Chicago Style (17a ed.)
Hartman, Frederick H. The Relations of Nation. 4th ed. New York: Macmillan Company, 1973.
Cita MLA (9a ed.)
Hartman, Frederick H. The Relations of Nation. 4th ed. Macmillan Company, 1973.
Precaución: Estas citas no son 100% exactas.