@misc{indiciae71789f0327e5, title = {Distribution and transport of trace substances in the Schuylkill River basin from Berne to Philadelphia, Pennsylvania}, author = {John K. Stamer and Thomas H. Yorke and Gary L. Pederson}, year = {1985}, doi = {10.3133/wsp2256a}, url = {https://pubs.usgs.gov/publication/wsp2256A}, note = {Source identifier: wsp2256A} }