TY  - BOOK
AU  - Jeffreys Harold
TI  - Collected papers of sir harald Jeffreys on geophysics and REF sciences
U1  - H:CxM91x, L1.1 
PY  - 1971///
CY  - London
PB  - Cardon and Breach       
KW  -  Geophysics
KW  - Geology
ER  -