TY  - RPRT
TI  - Federal coal resource occurrence and coal development potential maps of the Twin Buttes 7 1/2-minute Quadrangle, McKinley County, New Mexico
AU  - Berge Exploration Inc.
PY  - 1985
DO  - 10.3133/ofr8039
UR  - https://pubs.usgs.gov/publication/ofr8039
ID  - ofr8039
ER  -