TY  - BOOK
AU  - Black, F. A. 
TI  - Terrestrial magnetism and its causes: a contribution towards the elucidation of the problem
T2  - Harvard College Library History of Science Project
SN  - 1358961077
PY  - 1905///
CY  - London
PB  - Gall & Inglis
KW  - Terrestrial Magnetism
ER  -