TY  - RPRT
TI  - Resource-assessment perspectives for unconventional gas systems
AU  - J. W. Schmoker
PY  - 2002
DO  - 10.1306/61eedddc-173e-11d7-8645000102c1865d
UR  - https://pubs.usgs.gov/publication/70024198
ID  - 70024198
ER  -