Home › Authors › Herb, William J. 👤 Herb, William J. 2 books Books by Herb, William J. Hydrology of area 3, Eastern C Hydrology of area 3, Eastern Coal Province, Pennsylvania 1981 Sediment-trap efficiency of a Sediment-trap efficiency of a multiple-purpose impoundment, North Branch Rock Creek basin, Montgomery County, Maryland, 1968-76 1980