TY  - BOOK
AU  - Strangway,David W.
AU  - Hurley,Patrick M.
TI  - History of the earth's magnetic field
U1  - 538.7 STR  
PY  - 1970///.
CY  - New York : 
PB  - Mc Graw-Hill Book Company, 
KW  - Magnetic field - History
KW  - Magnetism
N1  - Includes index.
ER  -