00393    a2200121   4500082001500000100001700015245003600032260005000068300002000118650004900138650006600187700001800253  a581.7bSHU  aShukla, R.S.  aPlant ecology and soil science   aNew DelhibS. Chand & Company Ltdc1972g1987  aviii,97p.c21cm  aSpecific topics in natural history of plants  aPlants characteristic of specific environments, plant ecology  aChandel, P.S.