- Department of Commerce. Bureau of the Census. Office of the Assistant Director for Operations. Geography Division. (3/13/1947 - 1968)
- National Archives at College Park - Cartographic
This item lists Enumeration Districts for: PR ED 5-10: BARRIO RIO. PR ED 5-11: BARRIO SANTA ROSA. PR ED 5-12: BARRIO SONADORA. PR ED 5-13: CAMP BUCHANAN.