@misc{indiciaebfadc6de7daf, title = {Water resources data for Pennsylvania, water year 1987. Volume 1: Delaware River Basin}, author = {J.R. Kolva and T.E. White and R.L. Druther and P. Moleski}, year = {1989}, doi = {10.3133/wdrpa871}, url = {https://pubs.usgs.gov/publication/wdrPA871}, note = {Source identifier: wdrPA871} }