@misc{indiciae83e405590353, title = {Shaded relief map of the Cebrenia Quadrangle of Mars}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1984}, doi = {10.3133/i1475}, url = {https://pubs.usgs.gov/publication/i1475}, note = {Source identifier: i1475} }