TY  - RPRT
TI  - Mineral resources of the Ragged Top Wilderness Study Area, Pima County, Arizona
AU  - G.A. Nowlan
AU  - J.A. Peterson
AU  - J. A. Pitkin
AU  - W. F. Hanna
AU  - T. J. Kreidler
PY  - 1989
DO  - 10.3133/b1702h
UR  - https://pubs.usgs.gov/publication/b1702H
ID  - b1702H
ER  -