Art, R. J., & By Jervis , R. (1996). International politics : enduring concepts: And contemporary issues (4th ed.). Harper Collins.
Cita Chicago (17th ed.)Art, Robert J., i Robert By Jervis. International Politics : Enduring Concepts: And Contemporary Issues. 4th ed. New York: Harper Collins, 1996.
Cita MLA (9th ed.)Art, Robert J., i Robert By Jervis. International Politics : Enduring Concepts: And Contemporary Issues. 4th ed. Harper Collins, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.