@misc{indiciaedba26caa3a8e, title = {Assessment of coal geology, resources, and reserves in the Southwestern Powder River Basin, Wyoming}, author = {Lee M. Osmonson and David C. Scott and Jon E. Haacke and James A. Luppens and Paul E. Pierce}, year = {2011}, doi = {10.3133/ofr20111134}, url = {https://pubs.usgs.gov/publication/ofr20111134}, note = {Source identifier: ofr20111134} }