TY  - BOOK
AU  - Argall,George Oates
TI  - Industrial minerals of Colorado
T2  - Quarterly of the Colorado School of Mines, v. 44, no. 2
PY  - 1949///
CY  - Golden
PB  - [Publisher not identified]
KW  - Mines and mineral resources
KW  - Colorado
N1  - Includes bibliographies
ER  -