APA (7th ed.) Citation

Morgan, W. W., Keenan, P. C., & Kellman, E. (1943). An atlas of stellar spectra: With an outline of spectral classification. Univ. of Chicago Press.

Chicago Style (17th ed.) Citation

Morgan, William Wilson, Philip C. Keenan, and Edith Kellman. An Atlas of Stellar Spectra: With an Outline of Spectral Classification. Chicago, Ill: Univ. of Chicago Press, 1943.

MLA (9th ed.) Citation

Morgan, William Wilson, et al. An Atlas of Stellar Spectra: With an Outline of Spectral Classification. Univ. of Chicago Press, 1943.