Author search: "Hansen, Wallace R."
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Climatography of the Front Range Urban Corridor and Vicinity, ColoradoClimatography of the Front Range Urban Corridor and Vicinity, Colorado, BookA Graphical Summary of Climatic Conditions in A Region of Varied Physiography and Rapid Urbanization
by Hansen, Wallace R.Geology of the Flaming Gorge AreaGeology of the Flaming Gorge Area, BookUtah-Colorado-Wyoming
by Hansen, Wallace R.