Cita APA (7th ed.)

Kreyszig, E. (1978). Introductory functional analysis with applications. Wiley.

Cita Chicago (17th ed.)

Kreyszig, Erwin. Introductory Functional Analysis with Applications. New York: Wiley, 1978.

Cita MLA (8th ed.)

Kreyszig, Erwin. Introductory Functional Analysis with Applications. Wiley, 1978.