Παραπομπή APA

Gustafson, K. E. (1999). Introduction to partial differential equations and Hilbert space methods.- 3rd ed. (3rd ed., rev.). Dover Publications.

Παραπομπή Chicago Style

Gustafson, Karl E. Introduction to Partial Differential Equations and Hilbert Space Methods.- 3rd Ed. 3rd ed., rev. Mineola, N.Y.: Dover Publications, 1999.

Παραπομπή MLA

Gustafson, Karl E. Introduction to Partial Differential Equations and Hilbert Space Methods.- 3rd Ed. 3rd ed., rev. Dover Publications, 1999.