@misc{indiciae4cc574d7fe6f, title = {Progress Report on the Ground-Water Supply of the El Paso Area}, author = {Penn Livingston and J.M. Birdsall}, year = {1944}, doi = {10.3133/ofr4491}, url = {https://pubs.usgs.gov/publication/ofr4491}, note = {Source identifier: ofr4491} }