TY  - RPRT
TI  - Chemical and physical characteristics of coal and carbonaceous shale samples from the Salt Range coal field, Punjab Province, Pakistan
AU  - Peter D. Warwick
AU  - T. Shakoor
AU  - Shahid Javed
AU  - S.T.A. Mashhadi
AU  - H. Hussain
AU  - M. Anwar
AU  - M.I. Ghaznavi
PY  - 1990
DO  - 10.3133/ofr90524
UR  - https://pubs.usgs.gov/publication/ofr90524
ID  - ofr90524
ER  -