Παραπομπή APA

Gustafson, K. E. (1999). Introduction to Partial Differential Equations and Hilbert Space Methods (3rd ed.). Dover.

Παραπομπή Chicago Style

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

Παραπομπή MLA

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