Carter, G. M., Herz, J. H., & Ranney, J. C. (1957). Major foreign powers: The Governments of Great Britain, France, Germany, and the Soviet Union (3d ed.). Harcourt, Brace.
Lua i Stíl Chicago (17ú heag.)Carter, Gwendolen M., John H. Herz, agus John C. Ranney. Major Foreign Powers: The Governments of Great Britain, France, Germany, and the Soviet Union. 3d ed. New York: Harcourt, Brace, 1957.
Lua MLA (9ú heag.)Carter, Gwendolen M., et al. Major Foreign Powers: The Governments of Great Britain, France, Germany, and the Soviet Union. 3d ed. Harcourt, Brace, 1957.
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