TY  - BOOK
ED  - United States of Mines.
ED  -  United States Geological Survey.
TI  - Mineral resources of the United States  / 
U1  - Q 338.2 UNI 
PY  - 1948///
CY  - Washington : 
PB  - Public Affairs Press, 
KW  - Mines and mineral resources
KW  - United States
ER  -