TY  - RPRT
TI  - Preliminary geologic map of the Grand Gulch Bench Quadrangle, Mohave County, Arizona
AU  - Ivo Lucchitta
AU  - L. Sue Beard
PY  - 1981
DO  - 10.3133/ofr811321
UR  - https://pubs.usgs.gov/publication/ofr811321
ID  - ofr811321
ER  -