@misc{indiciae2c7c602799f5, title = {PCBs and DDE in commercial fish feeds}, author = {Michael J. Mac and L.W. Nicholson and C.A. McCauley}, year = {1979}, doi = {10.1577/1548-8659(1979)41[210:padicf]2.0.co;2}, url = {https://pubs.usgs.gov/publication/1000247}, note = {Source identifier: 1000247} }