Answered By: Kim Read Last Updated: Jul 24, 2015 Views: 6397
Treat your sources like confidential research participant data (http://blog.apastyle.org/apastyle/2013/08/lets-talk-about-research-participants.html). To maintain privacy, you can't list the exact source information. Since the reader can’t access the exact source, mention the general source in the text only. Do not create a reference entry for your references list.
For example, if you were using statistics for the city of Portland from the U.S. Census Bureau website, you might be accessing this page: http://quickfacts.census.gov/qfd/states/41/4159000.html. To keep your reader from knowing what city your research site is located in but to alert the reader (and your instructor!) to the source of your demographics, include something like this in your text:
“According to the most current data from the United States Census Bureau website, the site location population….”