Courant, R. 1., Robbins, H., & Stewart, I. (2007). What is mathematics?: An elementary approach to ideas and methods (2nd ed.). New Delhi: Oxford University Press.
Chicago Style CitationCourant, Richard 1888-1972, Herbert Robbins, and Ian Stewart. What Is Mathematics?: An Elementary Approach to Ideas and Methods. 2nd ed. New Delhi: Oxford University Press, 2007.
MLA CitationCourant, Richard 1888-1972, Herbert Robbins, and Ian Stewart. What Is Mathematics?: An Elementary Approach to Ideas and Methods. 2nd ed. New Delhi: Oxford University Press, 2007.
Warning: These citations may not always be 100% accurate.