TY - RPRT TI - Log ASCII Standard (LAS) Files for Geophysical (Gamma Ray) Wireline Well Logs and Their Application to Geologic Cross Section C-C' Through the Central Appalachian Basin AU - Michael H. Trippi AU - Robert D. Crangle PY - 2009 DO - 10.3133/ofr20091021 UR - https://pubs.usgs.gov/publication/ofr20091021 ID - ofr20091021 ER -