Showalter, R. E. (1977). Hilbert space methods for partial differential equations.
Chicago Edition CitationShowalter, R E. Hilbert Space Methods for Partial Differential Equations. London, Pitman, 1977.
MLA Edition CitationShowalter, R E. Hilbert Space Methods for Partial Differential Equations. 1977.
Warning: These citations may not always be 100% accurate.