Mathews, J. M. (1925). American state government. D. Appleton.
Lua i Stíl Chicago (17ú heag.)Mathews, John Mabry. American State Government. New York: D. Appleton, 1925.
Lua MLA (8ú heag.)Mathews, John Mabry. American State Government. D. Appleton, 1925.
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