Palmer, N. A. (2006). The twenties in America: Politics and history. Edinburgh University Press.
Lua i Stíl Chicago (17ú heag.)Palmer, Niall A. The Twenties in America: Politics and History. Edinburgh: Edinburgh University Press, 2006.
Lua MLA (9ú heag.)Palmer, Niall A. The Twenties in America: Politics and History. Edinburgh University Press, 2006.
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