 | Urbanization Northeastern States. | (1) |
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 | Hydrologic effects from urbanization of forested watersheds in the Northeast / by Howard W. Lull and William E. Sopper. Lull, Howard William, 1915- dn Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1969. | |
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