1940 Census Enumeration District Descriptions - Virginia - Roanoke County - ED 81-12, ED 81-13, ED 81-14, ED 81-15, ED 81-16

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 - Virginia - Roanoke County - ED 81-12, ED 81-13, ED 81-14, ED 81-15, ED 81-16. 1850-01-01/1950-12-31. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5885234. (Accessed September 20, 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 - Virginia - Roanoke County - ED 81-12, ED 81-13, ED 81-14, ED 81-15, ED 81-16. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5885234
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/5885234>.
Note: These citations are programmatically generated and may be incomplete.