TY  - RPRT
TI  - Preliminary geologic map of western San Juan basin, San Juan and McKinley Counties, New Mexico
AU  - R. B. O'Sullivan
AU  - E. C. Beaumont
PY  - 1957
DO  - 10.3133/om190
UR  - https://pubs.usgs.gov/publication/om190
ID  - om190
ER  -