000 00287nam a2200109Ia 4500
008 230210s9999 xx 000 0 und d
100 _aReddy, N.
_919336
245 0 _aProblems of Teaching Secondary School Mathematics
260 _bDPH New Delhi
_c2007
300 _a271
942 _cBK
999 _c119071
_d119071