00290nam a2200109Ia 450000500170000000800410001708200120005810000200007024500360009026000460012630000080017220260224040916.0260224s9999||||xx |||||||||||||| ||und||  a581 PRA  aPrasad, M.N.V.  0aHeavy metal stress in plants :   aNew Delhi: Narosa Publishers House,c2004  a462