作者: Kimberly Johnson Maier

Robert H. Watrel is associate professor of geography at South Dakota State University. Kimberly Johnson Maier is instructor of geography at South Dakota State University. Ryan Weichelt is professor of geography at the University of Wisconsin–Eau Claire. Fiona M. Davidson is associate professor of geography at the University of Arkansas. John Heppen is professor of geography at the University of Wisconsin–River Falls. Erin H. Fouberg is associate vice president for academic affairs and professor of geography at Northern State University. J. Clark Archer is professor of geography at University of Nebraska–Lincoln. Richard Morrill is emeritus professor of geography at the University of Washington. Fred M. Shelley is emeritus professor of geography at the University of Oklahoma. Kenneth C. Martis is emeritus professor of geography at West Virginia University.