Courant, R., & Robbins, H. (1941). What is mathematics: An elementary approach to ideas and methods. Oxford University.
Dyfyniad Arddull ChicagoCourant, Richard, and Herbert Robbins. What Is Mathematics: An Elementary Approach to Ideas and Methods. London: Oxford University, 1941.
Dyfyniad MLACourant, Richard, and Herbert Robbins. What Is Mathematics: An Elementary Approach to Ideas and Methods. Oxford University, 1941.
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