According to the U.S. Census Bureau - there is "no specific style recommendation for citing information" found ontheir website or in their databases or publications. Please select the most appropriate style for your use from the list below. When the page loads, type "census" in the search box to locate specific sections of information on how to cite the census materials.
The citations below are a few specific examples using this style manual; however, it's best to consult the full and most recent edition of the Publication Manual of the American Psychological Association, which can be found at Parks Library Circulation Desk, BF76.7 .P83 2009.
Government Document:
If a document is contained within a large and complex Web site such as a government agency or university; identify the host organization and the relevant program or department. Title of publication or database should be initalics, and then date retrieved before giving the URL for the document. Precede the URL with a colon.
U.S. Department of Commerce, Office of Textiles and Apparel. (2002). U.S. Total Exports in U.S.Dollars. Retrieved from http://otexa.ita.doc.gov/tqexp/htsdata.
U.S. Census Bureau. (2000). Population Profile of the United States: 2000 (Internet Release). Chapter 4. Motherhood: The Fertility of American Women, 2000. Retrieved from http://www.census.gov/population/www/pop-profile2000.html.