APA Edition Citation

Halmos, P. R. (1957). Introduction to Hilbert space and the theory of spectral multiplicity.

Chicago Edition Citation

Halmos, Paul R. Introduction to Hilbert Space and the Theory of Spectral Multiplicity. 1957.

MLA Edition Citation

Halmos, Paul R. Introduction to Hilbert Space and the Theory of Spectral Multiplicity. 1957.

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