TY  - BOOK
AU  - Barcelona, M.J  .
AU  - Garske, E.E  .
AU  - Gibb, J.P 
AU  - Helfrich, J.A 
TI  - Practical Guide for Ground Water Sampling / 
U1  - 551.49 
PY  - 1988///
CY  - Jodhpur : 
PB  - Scientific Publishers , 
ER  -