00346nam a2200109Ia 450000500170000000800410001702000140005805000170007210000170008924500890010626000410019520251229192625.0251229s9999    xx            000 0 und d  a082130572  aSF 757 .H23   aNissen, N.J. 0aAnimal hearth services in sub-saharan Africab  Alternative approaches .cN.J Nissen  aWashington DCb The world bankc1985