TY - RPRT TI - Use of dissolved and vapor‐phase gases to investigate methanogenic degradation of petroleum hydrocarbon contamination in the subsurface AU - Richard T. Amos AU - K. Ulrich Mayer AU - Barbara A. Bekins AU - Geoffrey N. Delin AU - Randi L. Williams PY - 2005 DO - 10.1029/2004wr003433 UR - https://pubs.usgs.gov/publication/70029377 ID - 70029377 ER -