O?Connor, K., & Sabato, L. (1994). American government: Roots and reform (Brief edition.). Macmillan Publishing Company.
Cita Chicago Style (17a ed.)O?Connor, Karen, y Larry Sabato. American Government: Roots and Reform. Brief edition. New York: Macmillan Publishing Company, 1994.
Cita MLA (9a ed.)O?Connor, Karen, y Larry Sabato. American Government: Roots and Reform. Brief edition. Macmillan Publishing Company, 1994.
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