000 002630000a22001210004500
245 _aSthithi vidyawa
100 _aLoney, S.L.
260 _aColombo
_bEducation Publication Dept.
_c1971
300 _a304p.
080 _a531.2
_bL6
041 _aSI
942 _cBK
999 _c97690
_d97690