APA (7th ed.) Citation

Murnaghan, F. D. (1962). The calculus of variations. Spartan Books.

Chicago Style (17th ed.) Citation

Murnaghan, Francis D. The Calculus of Variations. Washington, D.C.: Spartan Books, 1962.

MLA (8th ed.) Citation

Murnaghan, Francis D. The Calculus of Variations. Spartan Books, 1962.

Warning: These citations may not always be 100% accurate.