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Environmental Systems Research Institute (Redlands, Calif.)
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Puerto Rico
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2013
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1. United States Census Block Groups, 2013
2013. Tele Atlas (Firm : U.S.) and Environmental Systems Research Institute (Redlands, Calif.). U.S. Census Block Groups represents the U.S. Census block groups of the United States in the 50 states, the District of Columbia, and Puerto Rico. ... Environmental Systems Research Institute (Redlands, Calif.).