00343nam a2200133Ia 450000500170000000800410001702000150005808200230007310000240009624500350012026000320015530000130018744000090020020240704100936.0240126s9999    xx            000 0 und d  a0851993680  a338.4791  WEA;1  R  aWeaver, David B ed. 4aThe encyclopedia of ecotourism  bCABI publishingaOxonc2001  aXIV, 668  aNULL