TY - RPRT TI - Lithologic and geophysical logs of 30 coal test holes drilled in the Hanna Basin coal field, Carbon County, Wyoming AU - Marvin L. Schroeder AU - Michael Dronyk PY - 1978 DO - 10.3133/ofr78657 UR - https://pubs.usgs.gov/publication/ofr78657 ID - ofr78657 ER -