TY  - BOOK
AU  - Simpson,Howard E.H.
TI  - Bedrock geology of the Bristol quadrangle, Hartford, Litchfield and new Havencounties Connecticut
PY  - 1990///
CY  - Denver
PB  - U. S. Geological Survey
KW  - Geology, Statigraphic
KW  - Ordovician
KW  - Geology, Stratigraphic
KW  - Devonian
KW  - Triassic
ER  -