APA (7th ed.) Zitazioa
Downton, J. V., Downton, J., & Hart, D. K. (1971). Perspectives on political philosophy. Holt, Rinehart and Winston.
Chicago Style (17th ed.) Zitazioa
Downton, James V., James Downton, eta David K. Hart. Perspectives on Political Philosophy. New York: Holt, Rinehart and Winston, 1971.
MLA (9th ed.) Zitazioa
Downton, James V., et al. Perspectives on Political Philosophy. Holt, Rinehart and Winston, 1971.
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