Cita APA (7th ed.)
Carter, G. M., Herz, J. H., & Ranney, J. C. (1967). Major foreign powers (5th ed.). Harcourt Brace Jovanovich.
Cita Chicago (17th ed.)
Carter, Gwendolen Margaret, John H. Herz, i John C. Ranney. Major Foreign Powers. 5th ed. New York: Harcourt Brace Jovanovich, 1967.
Cita MLA (9th ed.)
Carter, Gwendolen Margaret, et al. Major Foreign Powers. 5th ed. Harcourt Brace Jovanovich, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.