000 00340nam a2200145Ia 4500
008 131111s9999 xx 000 0 und d
100 _aBaderia,G.S
245 _aMathematical excursions pastimes
260 _aNew Delhi
260 _bArya book
260 _c1989
300 _a63p.
650 _aEducation
_aMathematics
763 _a16538
999 _c59304
_d59304