@misc{indiciae9c22cfd50840, title = {Lead- and sulfur-isotope systematics in some sulfide deposits of the Piedmont and Blue Ridge provinces of the southern Appalachians}, author = {A.P. LeHuray}, year = {1984}, doi = {10.3133/ofr84112}, url = {https://pubs.usgs.gov/publication/ofr84112}, note = {Source identifier: ofr84112} }