TY  - RPRT
TI  - Geology of the Hugo pegmatite, Keystone, South Dakota
AU  - J.J. Norton
AU  - L. R. Page
AU  - D.A. Brobst
PY  - 1962
DO  - 10.3133/pp297b
UR  - https://pubs.usgs.gov/publication/pp297B
ID  - pp297B
ER  -