TY  - BOOK
AU  - C.A. Heiland
TI  - Geophysical exploration
U1  - 622.15 
PY  - 1951///
CY  - New York
PB  - Prentice Hall Inc
N1  - C.A. Heiland: Geophysical exploration.  New York.  Prentice Hall Inc, 1951.--(622.15HEI)
ER  -