TY  - RPRT
TI  - Preliminary geologic map of parts of Bristol quadrangle, Hartford, Litchfield, and New Haven counties, Connecticut, with preliminary engineering geologic interpretations
AU  - H.L. Simpson
PY  - 1974
DO  - 10.3133/ofr7472
UR  - https://pubs.usgs.gov/publication/ofr7472
ID  - ofr7472
ER  -