Patra, H. P. <br/><br/>
Geosounding principles, 2 :  time-varying geoelectric soundings / 
H. P. Patra and K. Mallick. 
 - Amsterdam :  Elsevier Scientific Publ. Co.,  1980. 
 - v. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0444418113  vol.2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Prospecting--Geophysical methods.