TY  - BOOK
T1  - Contributions to commodity geology research /
DA  - 1992.
CY  - Washington :
CY  - Denver :
AU  - DeYoung, John H.
AU  - Hammarstrom, Jane Marie.
VL  - 1877
CN  - QE75
CN  - QE75
PB  - U.S. G.P.O. ;
PB  - For sale by Book and Open-File Report Sales, U.S. Geological Survey,
PP  - Washington :
PP  - Denver :
PY  - 1992.
ID  - 229646
KW  - Geology, Economic.
KW  - Mines and mineral resources.
TI  - Contributions to commodity geology research /
ER  -