000			00359 a2200133 4500
082			_a510 _bYON
100			_aYoung, Frederick H. _9160365
245			_aNature of mathematics _cFrederick H. Young
260			_aNew York: _bJohn Wiley, _c1968.
300			_bxi, 407p.
500			_aIncludes bibliography and index
650			_aMathematics _9203172
942			_cBK
999			_c153223 _d153223