TY  - RPRT
TI  - Map of assessed tight-gas resources in the United States
AU  - Laura R. H. Biewick
AU  - USGS National Assessment of Oil and Gas Resources Team
PY  - 2014
DO  - 10.3133/ds69hh
UR  - https://pubs.usgs.gov/publication/ds69HH
ID  - ds69HH
ER  -