@misc{indiciae560e20ca1aed, title = {Surface water supply of Middle Atlantic states, 1906 (Susquehanna, Gunpowder, Patapsco, Potomac, James, Roanoke, and Yadkin River drainages)}, author = {Nathan Clifford Grover}, year = {1907}, doi = {10.3133/wsp203}, url = {https://pubs.usgs.gov/publication/wsp203}, note = {Source identifier: wsp203} }