000			00332nam a2200145Ia 4500
008			180710s9999 xx 000 0 und d
020			_a246026
082			_a793.74 _bPER
100			_aPerelman, Ya.
245			_aMathematics can be fun
260			_aMoscow _bMir Pub. _c1985
300			_a400 p.
650			_aAlgebra
942			_cS
999			_c71057 _d71057