TY  - RPRT
TI  - Aeromagnetic map of Alton quadrangle, New Hampshire: Total intensity relative to arbitrary datum
AU  - Randolph Wilson Bromery
AU  - G. L. Zandle
PY  - 1956
DO  - 10.3133/gp136
UR  - https://pubs.usgs.gov/publication/gp136
ID  - gp136
ER  -