TY - BOOK ID - 137708160 TI - Mineral resources of the Signal Mountain Wilderness Study Area, Maricopa County, Arizona AU - Gray, Floyd AU - Miller, Robert J. AU - Hassemer, Jerry R. AU - Knepper, Daniel H. AU - Pitkin, James A. AU - Hanna, William F. AU - Kreidler, Terry J. PY - 1989 PB - Washington United States Geological Survey, Department of the Interior DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:137708160 AB - ER -