Parker, J. C., Patterson, C. P., & McAlister, S. B. (1944). Citizenship in our democracy (Rev. ed.). D.C. Heath.
Lua i Stíl Chicago (17ú heag.)Parker, J. Cecil, C. Perry Patterson, agus Samuel Bertram McAlister. Citizenship in Our Democracy. Rev. ed. Boston: D.C. Heath, 1944.
Lua MLA (8ú heag.)Parker, J. Cecil, et al. Citizenship in Our Democracy. Rev. ed. D.C. Heath, 1944.
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