APA (7th ed.) Citation

Sandage, A., Sandage, M., & Kristian, J. (1975). Galaxies and the universe. University of Chicago Press.

Chicago Style (17th ed.) Citation

Sandage, Allan, Mary Sandage, and Jerome Kristian. Galaxies and the Universe. Chicago: University of Chicago Press, 1975.

MLA (9th ed.) Citation

Sandage, Allan, et al. Galaxies and the Universe. University of Chicago Press, 1975.