00289nam a2200085Ia 4500008004100000082002300041245009700064260002900161650001300190220204s9999    xx            000 0 und d  aNR:631.551978bRRM 0aRRIM short course on tapping, tapping systems and yield stimulation of Hevea 12-17 June 1978  aKuala LumpurbRRIMc1978  aEthephon