APA (7th ed.) Citation

Courant, R., & Hilbert, D. Methods of mathematical physics (1. Engl. ed., 7. print.). Interscience Publ.

Chicago Style (17th ed.) Citation

Courant, Richard, and David Hilbert. Methods of Mathematical Physics. 1. Engl. ed., 7. print. New York: Interscience Publ.

MLA (9th ed.) Citation

Courant, Richard, and David Hilbert. Methods of Mathematical Physics. 1. Engl. ed., 7. print. Interscience Publ.