TY  - RPRT
TI  - Preliminary surficial geologic map of the Northfield Quadrangle, Massachusetts-New Hampshire-Vermont
AU  - K.I. Campbell
AU  - J. H. Hartshorn
PY  - 1974
DO  - 10.3133/ofr7455
UR  - https://pubs.usgs.gov/publication/ofr7455
ID  - ofr7455
ER  -