TY - RPRT TI - Selected references: Gas geochemistry of the central and southern Appalachian basin AU - Erika E. Lentz AU - Leslie F. Ruppert AU - Yomayra A. Roman Colon PY - 2014 DO - 10.3133/pp1708h.6 UR - https://pubs.usgs.gov/publication/pp1708H.6 ID - pp1708H.6 ER -