Courant, R., & Robbins, H. (1941). What is mathematicsn: An elementary approach to ideas and methods. Oxford University Press.
Citación estilo ChicagoCourant, Richard, and Herbert Robbins. What Is Mathematicsn: An Elementary Approach to Ideas and Methods. New York: Oxford University Press, 1941.
Cita MLACourant, Richard, and Herbert Robbins. What Is Mathematicsn: An Elementary Approach to Ideas and Methods. Oxford University Press, 1941.
Warning: These citations may not always be 100% accurate.