000 00249nam a2200121Ia 4500
999 _c16920
_d16920
020 _a8120403851
100 _aVarshney R S
245 _aConcrete Dams
250 _a2
260 _c1988
_bOXFORD & IBH
_aNew Delhi
300 _axiv+595
942 _cBK