Cita APA (7th ed.)
Henderson ,conway w. (1997). International Relations. McGraw Hill.
Cita Chicago (17th ed.)
Henderson ,conway w. International Relations. New Delhi: McGraw Hill, 1997.
Cita MLA (9th ed.)
Henderson ,conway w. International Relations. McGraw Hill, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.