APA (7th ed.) Citation

Courant, R., & Hilbert, D. (1953). Methods of mathematical physics. Interscience.

Chicago Style (17th ed.) Citation

Courant, Richard, and David Hilbert. Methods of Mathematical Physics. Nueva York: Interscience, 1953.

MLA (9th ed.) Citation

Courant, Richard, and David Hilbert. Methods of Mathematical Physics. Interscience, 1953.