TY  - RPRT
TI  - Magnetic total intensity in the United States; epoch, 1975.0
AU  - E.B. Fabiano
AU  - N.W. Peddie
AU  - W. J. Jones
PY  - 1976
DO  - 10.3133/i915
UR  - https://pubs.usgs.gov/publication/i915
ID  - i915
ER  -