@misc{indiciae83594e951d92, title = {Geologic map of the Shirley Basin area, Albany, Carbon, Converse, and Natrona Counties, Wyoming}, author = {E.N. Harshman}, year = {1968}, doi = {10.3133/i539}, url = {https://pubs.usgs.gov/publication/i539}, note = {Source identifier: i539} }