TY  - BOOK
AU  - Hanley,John B.
TI  - Pegmatite investigations in Colorado, Wyoming and Utah 1942-1944,
AV  - QE75 .P9 no. 227
U1  - 552.1 
PY  - 1950///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Pegmatites
KW  - Mines and mineral resources
KW  - Colorado
KW  - Wyoming
KW  - Utah
N1  - Bibliographical footnotes
ER  -