Παραπομπή σε μορφή APA (7η εκδ.)

Halmos, P. R. (1957). Introduction to Hilbert Space: And the Theory of Spectral Multiplicity (2nd ed.). Chelsea Publishing Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Halmos, Paul R. Introduction to Hilbert Space: And the Theory of Spectral Multiplicity. 2nd ed. New York : Providence, Rhode Island: Chelsea Publishing Company, 1957.

Παραπομπή σε μορφή MLA (9th εκδ.)

Halmos, Paul R. Introduction to Hilbert Space: And the Theory of Spectral Multiplicity. 2nd ed. Chelsea Publishing Company, 1957.