TY - RPRT TI - Federal coal resource occurrence and coal development potential maps of the San Luis 7 1/2-minute quadrangle, Sandoval County, New Mexico AU - Berge Exploration Inc. PY - 1979 DO - 10.3133/ofr791044 UR - https://pubs.usgs.gov/publication/ofr791044 ID - ofr791044 ER -