The changing Midwest assessment: data and shapefiles

by Robert S. Potts (19656781), Eric J. Gustafson (9905805), Susan I. Stewart (19656784), Frank R. Thompson (11292352), Kathleen Bergen (19656787), Daniel G. Brown (11797023), Roger Hammer (19656790), Volker Radeloff (2925555), David Bengston (19656793), John Sauer (497255), Brian Sturtevant (3282978)
Published 2005