Gustafson, K. E. (1999). Introduction to partial differential equations and Hilbert space methods (Third edition, revised.). Dover Publications.
Lua i Stíl Chicago (17ú heag.)Gustafson, Karl E. Introduction to Partial Differential Equations and Hilbert Space Methods. Third edition, revised. Mineola, N.Y: Dover Publications, 1999.
Lua MLA (9ú heag.)Gustafson, Karl E. Introduction to Partial Differential Equations and Hilbert Space Methods. Third edition, revised. Dover Publications, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.