@misc{indiciae4fea83665b80, title = {Uranium-lead isotope systematics and apparent ages of zircons and other minerals in precambrian granitic rocks, Granite Mountains, Wyoming}, author = {K.R. Ludwig and J. S. Stuckless}, year = {1978}, doi = {10.1007/bf00375510}, url = {https://pubs.usgs.gov/publication/70012407}, note = {Source identifier: 70012407} }