00309nam a2200109Ia 4500008004100000040003800041100001800079245003700097260003200134300001200166653002100178211228s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aPritchard,J M 0aLandform and landscape in africa  bEdward ArnoldaLondonc1979  a160p p.  aLandforms-Africa