APA (7th ed.) Citation

Arnold, D. N., Boffi, D., & Falk, R. S. (2000). Approximation by quadrilateral finite elements.

Chicago Style (17th ed.) Citation

Arnold, Douglas N., Daniele Boffi, and Richard S. Falk. Approximation by Quadrilateral Finite Elements. 2000.

MLA (9th ed.) Citation

Arnold, Douglas N., et al. Approximation by Quadrilateral Finite Elements. 2000.