TY  - RPRT
TI  - Geology: Craters
AU  - E. C. Morris
AU  - E.M. Shoemaker
PY  - 1970
DO  - 10.1016/0019-1035(70)90070-9
UR  - https://pubs.usgs.gov/publication/70009942
ID  - 70009942
ER  -