003450000a2200109000450024501120000065000250011265000160013765000150015304100130016810000190018177300350020010aGenealogy of twentieth-century systematic mammalogists in North America: the descendants of Joseph Grinnell14aSistemática animal14aMamíferos14aBiología0 aInglés1 aJones, J. Knox1 tAGRO Vereda3701q48-56d1950?