TY  - RPRT
TI  - COALTAB; a software program that tabulates coal resource data
AU  - W.A. Scott
AU  - N.K. Gardner
PY  - 1987
DO  - 10.3133/ofr8718
UR  - https://pubs.usgs.gov/publication/ofr8718
ID  - ofr8718
ER  -