00280nam a2200097Ia 4500008004100000082002800041100002600069245004600095260003300141300000800174140113s9999 xx 000 0 und d a575.81:581.15(042) L5 a"Ledoux, Lucien. Ed." aGenetic Manipulations with plant material a1974bPlenum PresscNew York a601