000 00307nam a2200121Ia 4500
008 240806s9999||||xx |||||||||||||| ||und||
041 _aTamil
245 0 _aChemistry Unit 13 Teacher's Guide Grade 12 -13
260 _aMaharagama
_bNIE,
_c1997
300 _a13p.;
_c30cm
650 _aChemistry
942 _cTG
999 _c100829
_d100829