00255nam a2200109Ia 4500008004100000082001500041100001700056245001800073250000800091260003800099300000800137190710s9999    xx            000 0 und d  a581.5 K811  aKochhar, P L 0aPlant ecology  a9th  aNew DelhibS. Nagin and Co.c1975  a164