APA (7th ed.) Citation

Halmos, P. R. (1998). Introduction to Hilbert space and the theory of spectral multiplicity / Paul R. Halmos (2nd ed.). AMS Chelsea Publishing.

Chicago Style (17th ed.) Citation

Halmos, Paul R. Introduction to Hilbert Space and the Theory of Spectral Multiplicity / Paul R. Halmos. 2nd ed. Providence, RI.: AMS Chelsea Publishing, 1998.

MLA (9th ed.) Citation

Halmos, Paul R. Introduction to Hilbert Space and the Theory of Spectral Multiplicity / Paul R. Halmos. 2nd ed. AMS Chelsea Publishing, 1998.

Warning: These citations may not always be 100% accurate.