@misc{indiciaeeaa6abf6f54f, title = {Accumulation of PCB congeners in nestling tree swallows ( Tachycineta bicolor ) on the Hudson River, New York}, author = {Kathy R. Echols and Donald E. Tillitt and John W. Nichols and Anne L. Secord and John P. McCarty}, year = {2004}, doi = {10.1021/es049785p}, url = {https://pubs.usgs.gov/publication/70026458}, note = {Source identifier: 70026458} }