TY  - RPRT
TI  - Core-hole drilling and coal analysis report for nine holes drilled during 1977 in the Nucla coal field, Montrose County, Colorado
AU  - David Vincent Haines
PY  - 1978
DO  - 10.3133/ofr78899
UR  - https://pubs.usgs.gov/publication/ofr78899
ID  - ofr78899
ER  -