000 00335nam a2200133Ia 4500
008 240227s9999 xx 000 0 und d
041 _a Sinhala
245 0 _aද්‍රව්‍යවල ගුණ
260 _bNIE,
_c2008
300 _aiii, 57p.
_bcol.ill
_c26cm
650 _aScience
658 _aSecondary Course
942 _cMD
999 _c98781
_d98781