Skidmore, M. J., & Tripp, M. C. (1977). American government: A brief introduction (Second edition.). St. Martin's Press.
Dyfyniad Arddull ChicagoSkidmore, Max J., and Marshall Carter Tripp. American Government: A Brief Introduction. Second edition. New York: St. Martin's Press, 1977.
Dyfyniad MLASkidmore, Max J., and Marshall Carter Tripp. American Government: A Brief Introduction. Second edition. St. Martin's Press, 1977.
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