000			00357nam a2200133Ia 4500
008			161214s9999 xx 000 0 und d
020			_a9780486244013 _c(pbk)
082			_223 _a510 _bSAW
100			_aSawyer, W. W.
245		0	_aPrelude to mathematics.
260			_aNew York: _bDover Publications, _c1982
300			_a218 p.; _bill.: _c22 cm.
942			_2ddc _cBK
999			_c16283 _d16283