00493nam a2200133Ia 4500008004100000082002300041245009300064260002900157650002300186650002100209942000700230999001700237952010500254220204s9999    xx            000 0 und d  aNR:631.551979bRRM 0aRRIM training manual on tapping, tapping system and yield stimulation of Hevea June 1979  aKuala LumpurbRRIMc1979  aHevea exploitation  aHevea stimulants  cBK  c34318d34318  00104070aMAINbMAINd2021-12-16l0oNR:631.551979 RRMp14757r2021-12-16 00:00:00w2022-02-14yBK