00465nam a2200145Ia 4500008004100000100001500041245005800056260002800114300001200142650001700154650002200171942000700193999001700200952010200217220216s9999    xx            000 0 und d  aDaumas M G 0aChanging from conventional to crumb rubber production  bPlanters Bulletinc1969  a313-317  aCrumb rubber  aRubber production  cJS  c55349d55349  00104078aMAINbMAINc80d2021-12-17hVolume 105, Issuel0r2021-12-17 00:00:00w2022-02-16yJS