@misc{indiciae78d3d35b8806, title = {Landscape consequences of natural gas extraction in Armstrong and Indiana Counties, Pennsylvania, 2004–2010}, author = {Terry E. Slonecker and Lesley E. Milheim and Coral M. Roig-Silva and Alexander R. Malizia}, year = {2013}, doi = {10.3133/ofr20131263}, url = {https://pubs.usgs.gov/publication/ofr20131263}, note = {Source identifier: ofr20131263} }