TY  - RPRT
TI  - Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944
AU  - J.B. Hanley
AU  - E. W. Heinrich
AU  - L. R. Page
PY  - 1950
DO  - 10.3133/pp227
UR  - https://pubs.usgs.gov/publication/pp227
ID  - pp227
ER  -