Antique Magna, Utah 1952 US Geological Survey Topographic。Antique Westerville, Ohio 1904 US Geological Survey。Antique Westerville, Ohio 1904 US Geological Survey。。Terrain ruggedness and land cover: Improved data for most。GISと関連技術を用いた地形分析の唯一の参考書。Title:Terrain Analysis-Principles and ApplicationsEditors: John P. Wilson, John C. GallantPublisher: John Wiley & Sons,inc.