APA (7th ed.) Citation

(1991). Variability of active galactic nuclei: [Georgia State University Conference on Variability of Active Galactic Nuclei, May 2 - 4, 1990]. Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Variability of Active Galactic Nuclei: [Georgia State University Conference on Variability of Active Galactic Nuclei, May 2 - 4, 1990]. Cambridge u.a: Cambridge Univ. Press, 1991.

MLA (9th ed.) Citation

Variability of Active Galactic Nuclei: [Georgia State University Conference on Variability of Active Galactic Nuclei, May 2 - 4, 1990]. Cambridge Univ. Press, 1991.