TY  - BOOK
AU  - Lal, Shashi Bhushan
TI  - Effect of Practicle Size and Thickness of Aquifer on Cavity Development
U1  - 627.52 
PY  - 1990///
CY  - Pusa, Samastipur
PB  - RAU
KW  - Agricultural Economics
KW  - B.Tech
ER  -