@misc{indiciaef45541df1d4b, title = {Water Resources Data, Pennsylvania, Water Year 1990. Volume 2. Susquehanna and Potomac River Basins}, author = {W.C. Loper and R.R. Durlin and W.P. Schaffstall}, year = {1991}, doi = {10.3133/wdrpa902}, url = {https://pubs.usgs.gov/publication/wdrPA902}, note = {Source identifier: wdrPA902} }