TY - RPRT TI - Controlled photomosaic of the Margaritifer Sinus Northwest Quadrangle of Mars AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1981 DO - 10.3133/i1381 UR - https://pubs.usgs.gov/publication/i1381 ID - i1381 ER -