00493nam a2200181Ia 4500008004100000082001700041100001600058245005300074260004200127300000800169650001800177650004200195653001400237653001300251653001500264700001600279700001600295170901s1972    xx            000 0 und d  a551.49bW22H  aUllah, Wasi 0aHydrological Measurements for Watershed Research  aDehradunbJugal Kishore and Co.c1972  a299  aPure Sciences  aScience of the earth and other worlds  aHydrology  aResearch  aWatersheds  aDalal, S.S.  aGupta, S.K.