TY  - RPRT
TI  - Aeromagnetic map of the Colebrook-Umbagog Lake area, New Hampshire and Vermont
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1969
DO  - 10.3133/gp655
UR  - https://pubs.usgs.gov/publication/gp655
ID  - gp655
ER  -