Williams, O. P., & Press, C. (1961). Democracy in urban america: Readings on government and politics. Rand McNally.
Lua i Stíl Chicago (17ú heag.)Williams, Oliver P., agus Charles Press. Democracy in Urban America: Readings on Government and Politics. Chicago: Rand McNally, 1961.
Lua MLA (9ú heag.)Williams, Oliver P., agus Charles Press. Democracy in Urban America: Readings on Government and Politics. Rand McNally, 1961.
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