APA (7th ed.) Citation

Hirsch, F., Lacombe, G., & Levy, S. (1999). Elements of functional analysis. Springer.

Chicago Style (17th ed.) Citation

Hirsch, Francis, Gilles Lacombe, and Silvio Levy. Elements of Functional Analysis. New York ; Berlin: Springer, 1999.

MLA (9th ed.) Citation

Hirsch, Francis, et al. Elements of Functional Analysis. Springer, 1999.