00251nam a2200109Ia 4500082002400000100001700024245004600041260003000087300001400117500000500131700000500136  a304.609541bV316.PP  aVarma, K. N.  aPopulation problem in the Ganges valleyb  aAgrabS.L. Agarwalac1967  aix, 164p.  a  a