APA (7th ed.) Citation

Dacorogna, B. (1989). Direct methods in the calculus of variations. Springer-Verlag.

Chicago Style (17th ed.) Citation

Dacorogna, Bernard. Direct Methods in the Calculus of Variations. Berlin: Springer-Verlag, 1989.

MLA (8th ed.) Citation

Dacorogna, Bernard. Direct Methods in the Calculus of Variations. Springer-Verlag, 1989.

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