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Envisioning Landscapes, Making Worlds: Geography and the Humanities, edited by Stephen Daniels, Dydia DeLyser, J. Nicholas Entrikin, and Douglas Richardson
Roberson, George F., (2012)
Latin American population and urbanization analysis : maps and statistics, 1950-1982
Wilkie, Richard W., (1984)
Measuring land reform
Wilkie, James Wallace, (1974)