1. Subsurface and Stream Flow from Watershed Models;Black,1969
2. Runoff from watershed models;Black;Water Resources Res.,1970
3. The watershed in principle;Black;Water Res. Bull.,1970
4. Hydrograph Responses to Watershed Model Size and Similitude Relations;Black,1972
5. Watershed models for instructional films;Black;USDA Forest Service Research Note NE-113,1970