@misc{indiciaeb8e79294a5e3,
  title = {Discussion of paper by H. E. Wheeler and H. A. Coombs, "Late Cenozoic Mesa Basalt Sheet in Northwestern United States"},
  author = {G. W. Walker and D. A. Swanson},
  year = {1968},
  doi = {10.1007/bf02599802},
  url = {https://pubs.usgs.gov/publication/70000873},
  note = {Source identifier: 70000873}
}