TY  - RPRT
TI  - Geologic map of the North San Ysidro quadrangle, San Miguel County, New Mexico
AU  - Ross B. Johnson
PY  - 1972
DO  - 10.3133/gq1007
UR  - https://pubs.usgs.gov/publication/gq1007
ID  - gq1007
ER  -