APA (7th ed.) Citation

Buttazzo, G., Giaquinta, M., & Hildebrandt, S. (2005). One-dimensional variational problems: An introduction (Reprint.). Clarendon.

Chicago Style (17th ed.) Citation

Buttazzo, Giuseppe, Mariano Giaquinta, and Stefan Hildebrandt. One-dimensional Variational Problems: An Introduction. Reprint. Oxford: Clarendon, 2005.

MLA (9th ed.) Citation

Buttazzo, Giuseppe, et al. One-dimensional Variational Problems: An Introduction. Reprint. Clarendon, 2005.