TY  - BOOK
AU  - Venkatappa rao
AU  - Venkatappa rao
TI  - Geosynthetics asia 97
U1  - 620.191 
PY  - 1997///
CY  - India
PB  - Central board of irrigation and power 
N1  - 0; 0; 0; 620_191000000000000_GEO
ER  -