TY  - RPRT
TI  - Contour map of the bedrock surface, Collinsville Quadrangle, Connecticut
AU  - E. H. Handman
PY  - 1975
DO  - 10.3133/mf654a
UR  - https://pubs.usgs.gov/publication/mf654A
ID  - mf654A
ER  -