APA (7th ed.) Citation

HELMBERG, G. (1969). Introduction to spectral theory in Hilbert: Space. North-Holland.

Chicago Style (17th ed.) Citation

HELMBERG, Gilbert. Introduction to Spectral Theory in Hilbert: Space. Amsterdam: North-Holland, 1969.

MLA (9th ed.) Citation

HELMBERG, Gilbert. Introduction to Spectral Theory in Hilbert: Space. North-Holland, 1969.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.