000 00289nam a2200109Ia 4500
008 171127s2013 xx 000 0 und d
020 _a9789331319135
100 _aKetika Tyagi
245 _aElementary education
260 _aNew Delhi
_bAPH
_c2013
300 _axiv,238p.
_b22.5 cm.
650 _aElementaty education
999 _c124751
_d124751