00458nam a2200169Ia 4500008004100000020001500041082001900056100001900075245004100094260004800135300000800183650002300191650001800214653002000232653002200252653001400274170901s1978    xx            000 0 und d  a0521292972  a581.1341bH65I  aHillman, J. R. 0aIsolation of Plant Growth Substances  aCambridgebCambridge University Pressc1978  a157  aBotanical sciences  aPure Sciences  aGrowth (Plants)  aGrowth substances  aIsolation