00379    a2200109   4500020001500000082001400015100001500029245008500044260004800129300003100177650006100208  a8173196907  a551.4 SIN  aSingh, B P  aIsotopes in Hydrology, Hydrogeology and Water ResourcescB P Singh, Bhishm Kumar  aNew Delhi :bNarosa Publishing House,c2005  ax, 188p. :bill . ;c25 cm  aIsotopes in hydrology -- Hydrogeology -- Water Resources