TY - RPRT TI - Geochronometric and lead isotope data on samples from the Wallace 1 degree by 2 degrees Quadrangle, Montana and Idaho AU - R. F. Marvin AU - R. E. Zartman AU - J. D. Obradovich AU - J. E. Harrison PY - 1984 DO - 10.3133/mf1354g UR - https://pubs.usgs.gov/publication/mf1354G ID - mf1354G ER -