TY  - RPRT
TI  - Preliminary reconnaissance bedrock geologic map of the Shrewsbury quadrangle, Worcester County, Massachusetts
AU  - J. Christopher Hepburn
PY  - 1978
DO  - 10.3133/ofr78951
UR  - https://pubs.usgs.gov/publication/ofr78951
ID  - ofr78951
ER  -