000 00319nam a2200121Ia 4500
008 170101s1972 xx 000 0 und d
082 _a581.31 WEA
100 _aWeaver Robert J.
245 0 _aPlant Growth Substances in Agri
260 _aSan Francisco
_bW.H.Freeman & Co.
_c1972
300 _a594 p.
942 _2ddc
_cB
999 _c580616
_d580616