00297nam a2200109Ia 4500008004100000082001500041100002400056245003300080260004700113300001000160650001700170140113s9999    xx            000 0 und d  a581.143 K4  a" Leopold, A. Carl"  aplant growth and development  b"TataMcgrsw-hill publishing company, 1964"  a466p.  aPlant growth