000 00251nam a2200097Ia 4500
008 220816s9999||||xx |||||||||||||| ||und||
020 _aNULL
245 0 _aElementary mathematics
_cDorofeev, G.
260 _aMoscow:
_bMIR Publishers,
_c1988
300 _a488p.
999 _c3112
_d3112