000			00462nam a2200109Ia 4500
008			220816s9999||||xx |||||||||||||| ||und||
020			_a069102510x (v. 2
245		0	_aMathematics and plausible reasoning _cPolya, George,
260			_aPrinceton, N.J. : _bPrinceton University Press, _c1990
300			_ax., 225 p.; _bill. ; _c24 cm.
856			_uhttp://www.loc.gov/catdir/description/prin021/90209568.html | http://www.loc.gov/catdir/enhancements/fy0734/90209568-b.html
999			_c1976 _d1976