1940 Census Enumeration District Descriptions - Pennsylvania - Montgomery County - ED 46-119, ED 46-120, ED 46-121, ED 46-122

Chicago citation style
Department of Commerce. Bureau of the Census. Office of the Assistant Director for Operations. Geography Division. (3/13/1947 - 1968). 1940 Census Enumeration District Descriptions - Pennsylvania - Montgomery County - ED 46-119, ED 46-120, ED 46-121, ED 46-122. 1850-01-01/1950-12-31. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5858578. (Accessed September 25, 2018.)
APA citation style
Department of Commerce. Bureau of the Census. Office of the Assistant Director for Operations. Geography Division. (3/13/1947 - 1968), (1850-01-01/1950-12-31) 1940 Census Enumeration District Descriptions - Pennsylvania - Montgomery County - ED 46-119, ED 46-120, ED 46-121, ED 46-122. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5858578
MLA citation style
Department of Commerce. Bureau of the Census. Office of the Assistant Director for Operations. Geography Division. (3/13/1947 - 1968). Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/5858578>.
Note: These citations are programmatically generated and may be incomplete.