TY  - RPRT
TI  - Contour map of the bedrock surface, Avon Quadrangle, Connecticut
AU  - E. H. Handman
AU  - R. B. Ryder
PY  - 1973
DO  - 10.3133/mf514a
UR  - https://pubs.usgs.gov/publication/mf514A
ID  - mf514A
ER  -