1940 Census Enumeration District Descriptions - Puerto Rico - Vega Baja County - ED 20-4, ED 20-5, ED 20-6, ED 20-7, ED 20-8, ED 20-9, ED 20-10, ED 20-11

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 - Puerto Rico - Vega Baja County - ED 20-4, ED 20-5, ED 20-6, ED 20-7, ED 20-8, ED 20-9, ED 20-10, ED 20-11. 1850-01-01/1950-12-31. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5879514. (Accessed July 21, 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 - Puerto Rico - Vega Baja County - ED 20-4, ED 20-5, ED 20-6, ED 20-7, ED 20-8, ED 20-9, ED 20-10, ED 20-11. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5879514
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/5879514>.
Note: These citations are programmatically generated and may be incomplete.