@misc{indiciae9ef045ffc4b6, title = {Nutrients and organic compounds in Deer Creek and south branch Plum Creek in southwestern Pennsylvania, April 1996 through September 1998}, author = {D.R. Williams and M.E. Clark}, year = {2001}, doi = {10.3133/wri004061}, url = {https://pubs.usgs.gov/publication/wri004061}, note = {Source identifier: wri004061} }