Courant, R., & Robbins, H. (1941). What is mathematics?: An elementary approach to ideas and methods. Oxford University Press.
Chicago (17e ed.) BronvermeldingCourant, Richard, en Herbert Robbins. What Is Mathematics?: An Elementary Approach to Ideas and Methods. London: Oxford University Press, 1941.
MLA (9e ed.) BronvermeldingCourant, Richard, en Herbert Robbins. What Is Mathematics?: An Elementary Approach to Ideas and Methods. Oxford University Press, 1941.
Let op: Deze citaties zijn niet altijd 100% accuraat.