TY  - RPRT
TI  - Aeromagnetic map of Littleton and vicinity, New Hampshire and Vermont
AU  - Randolph Wilson Bromery
AU  - F. P. Gilbert
PY  - 1958
DO  - 10.3133/gp194
UR  - https://pubs.usgs.gov/publication/gp194
ID  - gp194
ER  -