1940 Census Enumeration District Maps - Pennsylvania - Mercer County - Farrell - ED 43-8, ED 43-9, ED 43-11, ED 43-12, ED 43-13, ED 43-14, ED 43-15, ED 43-16

Chicago citation style
Department of Commerce. Bureau of the Census. Office of the Associate Director for Decennial Census. Geography Division. (1/1987 - 7/15/2011). 1940 Census Enumeration District Maps - Pennsylvania - Mercer County - Farrell - ED 43-8, ED 43-9, ED 43-11, ED 43-12, ED 43-13, ED 43-14, ED 43-15, ED 43-16. 1880-01-01/1990-12-31. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5837942. (Accessed December 17, 2018.)
APA citation style
Department of Commerce. Bureau of the Census. Office of the Associate Director for Decennial Census. Geography Division. (1/1987 - 7/15/2011), (1880-01-01/1990-12-31) 1940 Census Enumeration District Maps - Pennsylvania - Mercer County - Farrell - ED 43-8, ED 43-9, ED 43-11, ED 43-12, ED 43-13, ED 43-14, ED 43-15, ED 43-16. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5837942
MLA citation style
Department of Commerce. Bureau of the Census. Office of the Associate Director for Decennial Census. Geography Division. (1/1987 - 7/15/2011). Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/5837942>.
Note: These citations are programmatically generated and may be incomplete.