TY  - BOOK
AU  - Patra,H.P.
AU  - Mallick,K.
TI  - Geosounding principles, 2: time-varying geoelectric soundings 
SN  - 0444418113
PY  - 1980///
CY  - Amsterdam
PB  - Elsevier Scientific Publ. Co.
KW  - Prospecting
KW  - Geophysical methods
ER  -