@misc{indiciaeea2ae6e6c89f, title = {Controlled photomosaic of the Hellas Southwest Quadrangle of Mars}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1982}, doi = {10.3133/i1454}, url = {https://pubs.usgs.gov/publication/i1454}, note = {Source identifier: i1454} }