000 00276nam a2200097Ia 4500
008 120229s9999 xx 000 0 und d
082 _a373.1 RAO
100 _aRao, P Srinivasa
245 _aPrinciples of secondary school
260 _bSonali Publications
_aNew Delhi
_c2007
999 _c125113
_d125113