00302nam a2200121 a 450000500170000000800410001704100080005808200110006610000140007724500360009126400420012730000110016920260717091210.0260717s1982    ii            000 0 eng d  aeng04a910.021 aAhmad, E.10aPhysical geography /cAhmad, E. 1aDelhi :bKalyani Publications,c1982.  a157 p.