TY  - RPRT
TI  - Preliminary geologic map, part of the Littrow region of the Moon
AU  - Baerbel Koesters Lucchitta
PY  - 1972
DO  - 10.3133/ofr72236
UR  - https://pubs.usgs.gov/publication/ofr72236
ID  - ofr72236
ER  -