Portland, Missouri (Simple English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Portland, Missouri" in Simple English language version.

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archive.org

McMillen, Margot Ford (1994). Paris, Tightwad and Peculiar: Missouri Place Names. Columbia, Missouri: University of Missouri Press. p. 41. ISBN 0-8262-0972-6.

books.google.com

Eaton, David Wolfe (1916). How Missouri Counties, Towns and Streams Were Named. The State Historical Society of Missouri. p. 268.

census.gov

"US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.