@article{190035, recid = {190035}, author = {Southworth, Scott, and Brezinski, David K.}, title = {Geology of the Harpers Ferry Quadrangle, Virginia, Maryland, and West Virginia /}, publisher = {U.S. G.P.O. ;}, address = {Washington :}, pages = {v, 33 p. :}, year = {1996}, note = {"Prepared in cooperation with the Maryland Geological Survey, the National Park Service, and the Loudoun County Department of Environmental Resources."}, url = {http://library.usi.edu/record/190035}, }