@misc{indiciaef23b6081cb04, title = {Anthropogenic and natural lead isotopes in Fe-hydroxides and Fe-sulphates in a watershed associated with arsenic-enriched groundwater, Maine, USA}, author = {Robert A. Ayuso and Nora K. Foley}, year = {2022}, doi = {10.1144/1467-7873/07-153}, url = {https://pubs.usgs.gov/publication/70033450}, note = {Source identifier: 70033450} }