00291nam a2200109Ia 4500008004100000082001900041100002200060245002600082260004300108300000900151650002100160140113s9999    xx            000 0 und d  a581.1(02) K3.3  a" Steward, F. C."  aPlant physiology v. 3  b"New York : Academic Press Inc, 1963."  a811p  aPlant physiology