APA (7th ed.) Citation

European Astronomical Meeting Athens, International Astronomical Union, Barbanis, B., & Hadjidemetriou, J. D. (1974). Galaxies and relativistic astrophysics. Springer-Verlag.

Chicago Style (17th ed.) Citation

European Astronomical Meeting Athens, International Astronomical Union, B. Barbanis, and J. D. Hadjidemetriou. Galaxies and Relativistic Astrophysics. Berlin, New York: Springer-Verlag, 1974.

MLA (9th ed.) Citation

European Astronomical Meeting Athens, et al. Galaxies and Relativistic Astrophysics. Springer-Verlag, 1974.