APA (7th ed.) Citation
Blanchard, P., & Brüning, E. (1992). Variational methods in mathematical physics: A unified approach. Springer Verlag.
Chicago Style (17th ed.) Citation
Blanchard, Philippe, and Erwin Brüning. Variational Methods in Mathematical Physics: A Unified Approach. Berlin: Springer Verlag, 1992.
MLA (9th ed.) Citation
Blanchard, Philippe, and Erwin Brüning. Variational Methods in Mathematical Physics: A Unified Approach. Springer Verlag, 1992.
Warning: These citations may not always be 100% accurate.