00249nam a2200097Ia 4500008004100000082002000041100002000061245002900081260003300110300000800143140113s9999    xx            000 0 und d  a581.143   K9.1   a"Steward, F.C."  aPlant Physiology Vol. VB  a1969bAcademic PresscLondon  a454