TY  - RPRT
TI  - Geologic map of the Westford quadrangle, Connecticut
AU  - John D. Peper
AU  - Maurice Henry Pease
PY  - 1975
DO  - 10.3133/gq1214
UR  - https://pubs.usgs.gov/publication/gq1214
ID  - gq1214
ER  -