TY  - RPRT
TI  - Interpretive geologic map of Mt. Ajo Quadrangle, Organ Pipe Cactus National Monument, Arizona
AU  - Janet L. Brown
PY  - 1992
DO  - 10.3133/ofr9223
UR  - https://pubs.usgs.gov/publication/ofr9223
ID  - ofr9223
ER  -