TY  - BOOK
AU  - Michael, A.M.
AU  - Khepar,S D  .
TI  - Water well and pump engineering / 
SN  - :
U1  - 628.114 
PY  - 1985///
CY  - New Delhi : 
PB  - Tata Mc-Graw Hill Publishing Company , 
N1  - ** Reference
ER  -