00413nam a2200133Ia 4500008004100000020001500041082001900056100002100075245008500096260005500181300000800236650001700244700001800261140316s9999    xx            000 0 und d  a0946688303  a634.99bDOU/FO  aDouglas,J Sholto  aForest farming : towards a solution to problems of world hunger and conservation  aLondonbIntermediate Technology Publicationsc1993  a207  aAgroforestry  ahart,robert a