APA (7th ed.) Citation

Showalter, R. E. (1977). Hilbert space methods for partial differential equations. Pitman.

Chicago Style (17th ed.) Citation

Showalter, Ralph E. Hilbert Space Methods for Partial Differential Equations. London [u.a.]: Pitman, 1977.

MLA (9th ed.) Citation

Showalter, Ralph E. Hilbert Space Methods for Partial Differential Equations. Pitman, 1977.