Cita APA

United States. Bureau of the Census & United States. National Archives and Records Administration. (2002). 15th census, population, 1930. Iowa. National Archives and Records Administration.

Chicago Style (17th ed.) Citation

United States. Bureau of the Census i United States. National Archives and Records Administration. 15th Census, Population, 1930. Iowa. [Washington, D.C.: National Archives and Records Administration, 2002.

Cita MLA

United States. Bureau of the Census i United States. National Archives and Records Administration. 15th Census, Population, 1930. Iowa. National Archives and Records Administration, 2002.