TY  - RPRT
TI  - Contour map of the bedrock surface, Hartford South Quadrangle, Connecticut
AU  - R. B. Ryder
AU  - E. H. Handman
PY  - 1973
DO  - 10.3133/mf487a
UR  - https://pubs.usgs.gov/publication/mf487A
ID  - mf487A
ER  -