00302nam a2200109Ia 450000500170000000800410001708200160005810000190007424500410009326000500013430000080018420260224040930.0260224s9999||||xx |||||||||||||| ||und||  a581.134 HIL  aHillman, J.R.  0aIsolation of plant growth substances  aNew York: Cambridge: University Press, c1978  a157