00669nam a2200181Ia 4500003000900000008004100009040001600050080001200066100001600078245014700094260004200241300001000283650002000293700002300313942000700336999001700343952012700360IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a51bCOU  aCourant, R. 0aWhat is mathematics ?ban elementary approach to ideas and methodscR. Courant and H. Robbins                                                   aOxfordbOxford University Pressc1941  a521p.  aMathematics982  aRobbins, H.920573  cBK  c11849d11849  00104070aBANbBANcGENd1996-08-14eWP    g635.43l0o51/ COUp12765r2021-11-05v635.43w1996-08-14yBKGRs. 635.43