00350nam a2200097Ia 450000500170000000800410001705000160005810000190007424501370009365000220023020251229192353.0251229s9999    xx            000 0 und d  aS 623 .K4W4  aWenner, Carl G 0aSoil conseversation in Kenyabespecially in small-scale farming in high potetial areas using labour intensive methodscCarl G Wenner  aSoil Conservation