1. Monthly maps of mean daily insolation for the United States
2. WATER-VAPOR TRANSFER OVER THE NORTH AMERICAN CONTINENT
3. Flohn, H. “Comments on water budget investigations, especially in tropical and subtropical mountain regions.”. World Water Balance (Proceedings of the Reading Symposium). July1970. pp.251–262. International Association of Scientific Hydrology.
4. Kohler, M. A., Nordensen, T. J. and Baker, D. R. 1959.“Evaporation Maps for the United States.”, 5U.S. Weather Bureau. Technical Paper 37, 13 plates. (Maps reprinted, with explanation, on pp. 63–64 of “Climatic Atlas of the United States” USDC, ESSA, EDS, Jun 1968)