000 00262nam a2200121Ia 4500
008 090707b ii f a fnsan d
082 _a532.2
_bB80H
100 _aTyagi B.S.
_98346
245 _aHydro Stastitics
260 _c1964
300 _a274p.
942 _cBK
999 _c2557
_d2557