APA (7th ed.) Citation

European Southern Observatory, Springer-Verlag, & EDP Sciences. Astronomy and astrophysics. Springer-Verlag.

Chicago Style (17th ed.) Citation

European Southern Observatory, Springer-Verlag, and EDP Sciences. Astronomy and Astrophysics. Berlin ; New York: Springer-Verlag.

MLA (9th ed.) Citation

European Southern Observatory, et al. Astronomy and Astrophysics. Springer-Verlag.