@misc{indiciaea8ced54f45ed, title = {Controlled photomosaic of the Elysium Southwest Quadrangle of Mars}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1981}, doi = {10.3133/i1384}, url = {https://pubs.usgs.gov/publication/i1384}, note = {Source identifier: i1384} }