TY  - RPRT
TI  - Shaded relief and surface markings maps of the polar regions of Ganymede
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1992
DO  - 10.3133/i2331
UR  - https://pubs.usgs.gov/publication/i2331
ID  - i2331
ER  -