APA (7th ed.) Citation

Helffer, B. (2013). Spectral theory and its applications (1. publ.). Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Helffer, Bernard. Spectral Theory and Its Applications. 1. publ. Cambridge [u.a.]: Cambridge Univ. Press, 2013.

MLA (9th ed.) Citation

Helffer, Bernard. Spectral Theory and Its Applications. 1. publ. Cambridge Univ. Press, 2013.

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