TY  - BOOK
AU  - Thompson,Roy
AU  - Oldfield,Frank
TI  - Environmental magnetism
SN  - 0045380031
AV  - QC820 .T57 1986
U1  - 538/.7�19 
PY  - 1986///
CY  - London
PB  - Allen & Unwin
KW  - Magnetic measurements
KW  - Geomagnetism
ER  -