1. Interpretation of erosinal topography in humid temperate regions.;Hack;American Journal of Science,1960
2. A Consideration of Climax Theory: The Climax as a Population and Pattern
3. Morphological Analysis of Landforms.;Penck;Morphological Analysis of Landforms,1953
4. Potential natural vegetation of the conterminous United States.;Küchler;American Geographical Society, Special Publication,1964
5. The geographical cycle.;Davis;Geographical Journal,1954