TY  - RPRT
TI  - Map showing relief and surface markings of the lunar polar regions
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1981
DO  - 10.3133/i1326b
UR  - https://pubs.usgs.gov/publication/i1326B
ID  - i1326B
ER  -