APA (7th ed.) Citation

Kreyszig, E. (1989). Introductory Functional Analysis with Applications. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Kreyszig, Erwin. Introductory Functional Analysis with Applications. New York: John Wiley & Sons, 1989.

MLA (9th ed.) Citation

Kreyszig, Erwin. Introductory Functional Analysis with Applications. John Wiley & Sons, 1989.