Matthews, D. R. (1960). U.S. senators and their world. New York: Vintage Books.
Citación estilo ChicagoMatthews, Donald R. U.S. Senators and Their World. New York: Vintage Books, 1960.
Cita MLAMatthews, Donald R. U.S. Senators and Their World. New York: Vintage Books, 1960.
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