01004nam a2200301   45000010006000000050017000060080004000230100017000270200015000440350021000590350024000800350028001040350015001320400019001470500020001661000034001862450115002202600065003353000029004004900025004295000082004545000040005365000020005765040032005966500017006287000031006458300026006764182020150603144639.0000  a   41025632   a0195025172  a(OCoLC)426255746  a(OCoLC)ocn426255746  a(CStRLIN)NYCG22543325-B  a(NNC)41820  aUOELcNNCdNNC  aQA37b.C68 19411 aCourant, Richard,d1888-1972.10aWhat is mathematics? :ban elementary approach to ideas and methods /cby Richard Courant and Herbert Robbins.  aOxford ;aNew York :bOxford University Press,c1978, c1969.  a521 p. ;bill. ;c23 cm.1 aGalaxy book ;vGB576  a"First issued as an Oxford University Press paperback, 1978" -- Verso of t.p.  aIssued with various printing dates.  aIncludes index.  aBibliography: p. [511]-514. 0aMathematics.1 aRobbins, Herbert,eauthor. 0aGalaxy book ;vGB576.