@misc{indiciaee3a9fe75f893, title = {Report on coal resource exploration assessment program drilling and related activities April 1986 to May 1987 southern Sind Province, Pakistan; summary}, author = {R. E. Thomas and E.R. Landis and R.A. Khan}, year = {1988}, doi = {10.3133/ofr88275a}, url = {https://pubs.usgs.gov/publication/ofr88275A}, note = {Source identifier: ofr88275A} }