APA (7th ed.) Citation

Krolik, J. H. (1999). Active galactic nuclei: From the central black hole to the galactic environment. Princeton University Press.

Chicago Style (17th ed.) Citation

Krolik, Julian Henry. Active Galactic Nuclei: From the Central Black Hole to the Galactic Environment. Princeton, N.J.: Princeton University Press, 1999.

MLA (8th ed.) Citation

Krolik, Julian Henry. Active Galactic Nuclei: From the Central Black Hole to the Galactic Environment. Princeton University Press, 1999.