TY  - RPRT
TI  - Geology of Hadley Rille preliminary report
AU  - Keith A. Howard
AU  - James W. Head
AU  - G.A. Swann
PY  - 1972
DO  - 10.3133/ofr72171
UR  - https://pubs.usgs.gov/publication/ofr72171
ID  - ofr72171
ER  -