TY  - BOOK
AU  - Bhattacharya,P.K.
AU  - Patra,H.P
TI  - Direct current geoelectric sounding: principles and interpretation 
PY  - 1968///
CY  - Amsterdam
PB  - Elsevier Publishing Co.
KW  - Electric prospecting
N1  - Bibliography: p. 129-131
ER  -