Cita APA (7th ed.)
Northedge, F. S., & Grieve, M. (1971). A hundred years of international relations. Praeger.
Cita Chicago (17th ed.)
Northedge, F. S., i M.J Grieve. A Hundred Years of International Relations. New York: Praeger, 1971.
Cita MLA (9th ed.)
Northedge, F. S., i M.J Grieve. A Hundred Years of International Relations. Praeger, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.