TY  - BOOK
AU  - Schrader,Frank Charles
AU  - Stone,Ralph W.
AU  - Sanford, Samuel,
TI  - Useful minerals of the United States,
T2  - United States. Geological survey. Bulletin 624
AV  - QE75 .B9 no. 624
PY  - 1917///
CY  - Washington
PB  - Govt. print. off.
KW  - Mines and mineral resources
KW  - United States
N1  - At head of title: Department of the interior
ER  -