TY  - RPRT
TI  - Reconnaissance geologic map of the Picacho Butte quadrangle, Yavapai and Coconino Counties, Arizona
AU  - M. H. Krieger
PY  - 1960
DO  - 10.3133/i500
UR  - https://pubs.usgs.gov/publication/i500
ID  - i500
ER  -