000 00258nam a2200109Ia 4500
008 230210s9999 xx 000 0 und d
100 _aMENKA
_914623
245 0 _aTEACHING OF MATHEMATICS
260 _bSurya Publication
_c2010
300 _a152
942 _cBK
999 _c117359
_d117359