@misc{indiciaeb7bcad59123f, title = {Preliminary geologic map of the Torrington 1 degree by 2 degrees Quadrangle, southeastern Wyoming and western Nebraska}, author = {J. D. Love and A. C. Christiansen and Cassandra K. Sever}, year = {1978}, doi = {10.3133/ofr78535}, url = {https://pubs.usgs.gov/publication/ofr78535}, note = {Source identifier: ofr78535} }