TY  - BOOK
AU  - Beck A E
TI  - Physical principles of exploration methods: An introductory text for geology and geophysics students
T2  - Developments in geotectonics; 14
U1  - H4, M1 
PY  - 1981///
CY  - London
PB  - Macmillen Press        
KW  - Dynamic Geology
ER  -