00421nam a2200133Ia 4500008004100000020001500041082001900056100002100075245007400096260004700170300002300217700003000240700001700270251030b        |||||||| |||| 00| 0 eng d  a0195687108  a510.9bC858.WM  aCourant, Richard  aWaht is mathematics?b: an elementary approach to ideas and methods /  aNew Delhi:bOxford University Press,c2008  a566p. Bibl. Index.  aRobbins, Herberteauthor.  aStewart, Ian