APA (7th ed.) Citation

Mikhlin, S. G. (1964). Variational methods in mathematical physics. Pergammon Press.

Chicago Style (17th ed.) Citation

Mikhlin, S. G. Variational Methods in Mathematical Physics. Oxford ; New York: Pergammon Press, 1964.

MLA (9th ed.) Citation

Mikhlin, S. G. Variational Methods in Mathematical Physics. Pergammon Press, 1964.

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