APA (7th ed.) Zitazioa
Patterson, T. E. (2003). The American democracy (6th ed.). McGraw-Hill.
Chicago Style (17th ed.) Zitazioa
Patterson, Thomas E. The American Democracy. 6th ed. Boston: McGraw-Hill, 2003.
MLA (9th ed.) Zitazioa
Patterson, Thomas E. The American Democracy. 6th ed. McGraw-Hill, 2003.
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