TY  - RPRT
TI  - Geologic maps of science study site 1A, East Mangala Valles, Mars
AU  - Mary G. Chapman
AU  - Harold Masursky
AU  - A. L. Dial
PY  - 1989
DO  - 10.3133/i1962
UR  - https://pubs.usgs.gov/publication/i1962
ID  - i1962
ER  -