TY  - RPRT
TI  - Mineral resources of the San Juan primitive area, Colorado, with a section on iron resources in the Irving Formation
AU  - Thomas August Steven
AU  - L.J. Schmitt
AU  - M.J. Sheridan
AU  - F. E. Williams
AU  - Jacob Eugene Gair
AU  - Harry Klemic
PY  - 1969
DO  - 10.3133/b1261f
UR  - https://pubs.usgs.gov/publication/b1261F
ID  - b1261F
ER  -