TY  - BOOK
AU  - Jeffreys H
AU  -  Swirles B
TI  - Collected papers of harold jeffreys on geophysics and REF sciences
U1  - H:(C)XM91x, L1.2-;3 
PY  - 1971///
CY  - London
PB  - Golden and Breach       
KW  - Geophysics
ER  -