00383nam a2200121Ia 450000500170000000800410001702000220005805000190008010000210009924500680012026000400018865000330022820251229184654.0251229s9999    xx            000 0 und d  a978-0-340-19766-0  aSF 85 .P7 C.12  aPratt, D J (ed.) 0aRangeland management and ecology in East Africa.cD J (ed Pratt  aLondonb Hodder and Stoughtonc1977  aRangeland Management-Ecology