00408nam a22001457i 4500001001000000005001700010008004100027082002100068100001600089245003900105250001000144260004900154300001700203650004200220SXC02179820260819093716.0260101s1996    ii            000 0 eng d  a372.3 NES-S2222  aNesamony, S10aSwasthavruttham (m) /cNesamony, S  a2 ed.  abKerala Bhasha Institute, Trivandrum,c1996  ap. ;c22 cm. 0aElementary education-Science & Health