00313nam a2200109 a 450000500170000008200170001710000210003424500470005526000530010230000260015563000220018120251202164158.0  a634.928bKNU  aKnuchel, Hermann  aPlanning and control in the managed forest  aDehra DunbInternational Book Distributorsc1983  axvi,360 p.b22cm.cHB  aForest management