TY  - BOOK
T1  - Mineral resources of the Big Horn Mountains wilderness study area, Maricopa County, Arizona /
DA  - 1987.
CY  - Washington :
CY  - Denver, CO :
AU  - Gray, Floyd.
VL  - ch. A
VL  - 1701
CN  - QE75
CN  - QE75
PB  - GPO ;
PB  - For sale by the Books and Open-File Reports Section, U.S. Geological Survey,
PP  - Washington :
PP  - Denver, CO :
PY  - 1987.
N1  - One folded map issued in pocket at end.
ID  - 229494
KW  - Mines and mineral resources
KW  - Geology
TI  - Mineral resources of the Big Horn Mountains wilderness study area, Maricopa County, Arizona /
ER  -