TY  - RPRT
TI  - Dissolved methane in groundwater, Upper Delaware River Basin, Pennsylvania and New York, 2007-12
AU  - William M. Kappel
PY  - 2013
DO  - 10.3133/ofr20131167
UR  - https://pubs.usgs.gov/publication/ofr20131167
ID  - ofr20131167
ER  -