TY  - RPRT
TI  - Geologic maps of the Olympus Mons region of Mars
AU  - E. C. Morris
AU  - K. L. Tanaka
PY  - 1994
DO  - 10.3133/i2327
UR  - https://pubs.usgs.gov/publication/i2327
ID  - i2327
ER  -