000 00287nam a22001097a 4500
999 _c2080
_d2080
020 _a9789556542325
082 _a030
_bISL
245 _aவிஞ்ஞ◌ானம்
_bTeacher's Resource grade 11
260 _aColombo
_bNational Institute Of Education
_c2009
300 _a160p.
942 _cL