00375nam a2200133Ia 4500008004100000020001800041040003800059100001700097245001700114250000800131260004500139300001500184653004200199211231s9999    xx            000 0 und d  a0 309 04034 5  cJayakar Knowledge Resource Centre  aForest Trees 0aForest trees  a1st  bNational Academy PressaWashingtonc1991  axi,228p p.  aForest genetic resources conservation