APA (7th ed.) Citation

Elsgolc, L. E. (1962). Calculus of variations. Pergamon.

Chicago Style (17th ed.) Citation

Elsgolc, L. E. Calculus of Variations. London: Pergamon, 1962.

MLA (8th ed.) Citation

Elsgolc, L. E. Calculus of Variations. Pergamon, 1962.

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