TY  - RPRT
TI  - Topographic map of the Iapygia Southwest Quadrangle (MC-21 SW) of Mars
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1991
DO  - 10.3133/i2104
UR  - https://pubs.usgs.gov/publication/i2104
ID  - i2104
ER  -