TY  - BOOK
AU  - Fabiano,E.B.
AU  - Jones,W.J.
AU  - Peddie,N.W.
ED  - United States.
TI  - The magnetic charts of the United States for epoch 1975
U1  - 538.7 
PY  - 1979///
CY  - Washington, D.C
PB  - United States Government Printing Office
KW  - Geomagnetism
KW  - Gravity
KW  - Measurement
ER  -