00373nam a2200133Ia 4500008004100000082001600041100001800057245003400075260004400109300000800153650001800161650004200179653001800221170901s1982    xx            000 0 und d  a551.4bS33P  aSharma, H. S. 0aPerspectives in Geomorphology  aNew DelhibConcept Publishing Co.c1982  a358  aPure Sciences  aScience of the earth and other worlds  aGeomorphology