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2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shape file depicts internal, first-order administrative boundaries for states and provinces of Australia, Brazil, Canada and the Unite... North American Cartographic Information Society.
Hijmans, Robert J. This polygon shapefile contains the third-level administrative divisions of Brazil (adm3). Level 3 divisions include districts. This layer is part ... University of California, Berkeley. Museum of Vertebrate Zoology and International Rice Research Institute.