00706nam a2200205Ia 4500001000700000003000500007005001700012008004100029020001500070100002900085245007700114260005700191650003100248650003500279650003300314650004000347650003500387650003400422710004400456222483BIBL20160527200859.0990830|1991||||||||||||||||||||| ||||||d  a08704483070 aFisher, Ronald M.2Local10aHeartland of a continentbAmerica's Plains and pairiescRonald M. Fisher  aWashington, D.C.bNational Geographic Societyc1991. 0aWest U.SxGeography2Local 0aPrairieszNorth America2Local 0aPlainszNorth America2Local 0aPrairie ProvincesxGeography2Local 0aGreat PlainsxGeography2Local 0aMiddle WestxGeography2Local00aNational Geographic Society U.S.2Local