TY  - RPRT
TI  - Discussion of paper by H. E. Wheeler and H. A. Coombs, "Late Cenozoic Mesa Basalt Sheet in Northwestern United States"
AU  - G. W. Walker
AU  - D. A. Swanson
PY  - 1968
DO  - 10.1007/bf02599802
UR  - https://pubs.usgs.gov/publication/70000873
ID  - 70000873
ER  -