00380nam a2200133Ia 4500008004100000082002100041100002200062245004000084260003700124300001500161490003000176600001500206650002500221140224s9999 xx 000 0 und d a634.0:63(213) M9 aNair, P.K.R., ed. aAgroforestry systems in the tropics aDordrechtbKluwer Academicc1989 aviii,664p. aForestry Sciences, vol.31 aP.K.R.Nair aAgroforestry,Tropics