APA (7th ed.) Citation

Condon, E. U., & Shortley, G. (1964). The theory of atomic spectra. University Press.

Chicago Style (17th ed.) Citation

Condon, Edward Uhler, and George Shortley. The Theory of Atomic Spectra. Cambridge: University Press, 1964.

MLA (9th ed.) Citation

Condon, Edward Uhler, and George Shortley. The Theory of Atomic Spectra. University Press, 1964.