@misc{indiciaeffcf2ea7fbdd,
  title = {40Ar/39Ar and K-Ar geochronology and tectonic significance of the Upper Cretaceous Adel Mountain volcanics and spatially associated Tertiary igneous rocks, northwestern Montana},
  author = {Stephen S. Harlan and Lawrence W. Snee and Mitchell W. Reynolds and Harald H. Mehnert and R. G. Schmidt and Steve D. Sheriff and Anthony J. Irving},
  year = {2005},
  doi = {10.3133/pp1696},
  url = {https://pubs.usgs.gov/publication/pp1696},
  note = {Source identifier: pp1696}
}