@misc{indiciae76cfee4f9c51, title = {Effects of an aerial application of DDT on fish and fish-food organisms in two Pennsylvania watersheds}, author = {C. H. Hoffmann and E. W. Surber}, year = {1949}, doi = {10.1577/1548-8640(1949)11[203:eoaaao]2.0.co;2}, url = {https://pubs.usgs.gov/publication/1014328}, note = {Source identifier: 1014328} }