000 00397nam a2200169Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a513
_bD814
100 _aDubnov Ya S
245 _aMistakes in geometric proofs
260 _aBoston
_bD C Heath
_c1963
300 _av,157p.
650 _aGeometry
700 _aHenn A K
_4tr.
942 _cBK
999 _c56044
_d56044