United States. Bureau of the Census & United States. National Archives and Records Administration. (2002). 15th census, population, 1930. The Bureau.
Lua i Stíl Chicago (17ú heag.)United States. Bureau of the Census agus United States. National Archives and Records Administration. 15th Census, Population, 1930. [Washington, D.C.]: The Bureau, 2002.
Lua MLA (8ú heag.)United States. Bureau of the Census agus United States. National Archives and Records Administration. 15th Census, Population, 1930. The Bureau, 2002.
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