000 00290nam a2200109Ia 4500
008 230210s9999 xx 000 0 und d
100 _aREDDY N.S NAGRAJA
_918546
245 0 _aPROBLEMS OF TEACHING SECONDARY SCHOOL MATHEMATICS
260 _bD.P.H Delhi
_c2007
300 _a271
942 _cBK
999 _c117837
_d117837