TY  - RPRT
TI  - Valencia and Hackett mica mines, Groton, New Hampshire
AU  - C.S. Maurice
AU  - J.B. Headley
PY  - 1943
DO  - 10.3133/ofr4367
UR  - https://pubs.usgs.gov/publication/ofr4367
ID  - ofr4367
ER  -