University of North Carolina at Chapel Hill, Dept. of Geographyc1982Studies in geography (University of North Carolina at Chapel Hill. Dept. of Geography)
no. 17
University of North Carolina at Chapel Hill, Dept. of Geography[1974]Studies in geography (University of North Carolina at Chapel Hill. Dept. of Geography)
no. 6
University of North Carolina at Chapel Hill, Dept. of Geographyc1973Studies in geography (University of North Carolina at Chapel Hill. Dept. of Geography)
no. 5