TY  - BOOK
AU  - Gwynne,Charles Sumner
TI  - Pegmatites in the Beecher Rock basin,
T2  - South Dakota Geological Survey. Report of investigations,
AV  - QE461 .G9
PY  - 1944///
CY  - Vermillion, S.D.
PB  - University of South Dakota
KW  - Pegmatites
KW  - Geology
KW  - South Dakota
KW  - Custer County
N1  - At head of title: State of South Dakota, M. Q. Sharpe, Governor. State Geological Survey, E. P. Rothrock, State Geologist; Reproduced from type-written copy; "Selected bibliography": leaf at end
ER  -