TY - GEN A2 - United States. National Aeronautics and Space Administration A2 - Planetary Geology Program (U.S.) AU - Geological Survey (U.S.) CN - I 19.91:I-2224 CY - Reston, Va. CY - Denver, CO LA - English PB - [The Survey, For sale by Map Distribution] PP - Reston, Va. PP - Denver, CO PY - 1991 TI - Controlled photomosaic of the MTM -25257 quadrangle, Tyrrhena Patera Region of Mars ER -