TY  - RPRT
TI  - Aeromagnetic map of part of the Newburyport East quadrangle, Essex County, Massachusetts, and Rockingham County, New Hampshire
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1970
DO  - 10.3133/gp715
UR  - https://pubs.usgs.gov/publication/gp715
ID  - gp715
ER  -