TY  - RPRT
TI  - Controlled photomosaic of the Njord Quadrangle of Callisto
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1990
DO  - 10.3133/i2076
UR  - https://pubs.usgs.gov/publication/i2076
ID  - i2076
ER  -