TY - RPRT TI - Sediment yields of urban construction sources, Montgomery County, Maryland; a progress report, Rock Creek-Anacostia River Basins AU - Thomas H. Yorke AU - W.J. Davis PY - 1972 DO - 10.3133/ofr72455 UR - https://pubs.usgs.gov/publication/ofr72455 ID - ofr72455 ER -