TY  - RPRT
TI  - Ruggles feldspar-mica mine, Grafton County, New Hampshire
AU  - J.J. Page
AU  - E. Ellingwood
AU  - F.H. Main
PY  - 1945
DO  - 10.3133/ofr4582
UR  - https://pubs.usgs.gov/publication/ofr4582
ID  - ofr4582
ER  -