TY  - RPRT
TI  - Coalbed methane resource potential and current prospects in Pennsylvania
AU  - A.K. Markowski
PY  - 1998
DO  - 10.1016/s0166-5162(98)00036-6
UR  - https://pubs.usgs.gov/publication/70020263
ID  - 70020263
ER  -