APA (7th ed.) Citation

Friedman, A. (1982). Variational principles and free-boundary problems. Wiley.

Chicago Style (17th ed.) Citation

Friedman, Avner. Variational Principles and Free-boundary Problems. New York (u.a.): Wiley, 1982.

MLA (9th ed.) Citation

Friedman, Avner. Variational Principles and Free-boundary Problems. Wiley, 1982.

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