Cita APA (7a ed.)

SpringerLink (Online service), Alloin, D., Johnson, R., & Lira, P. (2006). Physics of active galactic nuclei at all scales. Springer.

Cita Chicago Style (17a ed.)

SpringerLink (Online service), Danielle Alloin, Rachel Johnson, y Paulina Lira. Physics of Active Galactic Nuclei at All Scales. Berlin, Heidelberg: Springer, 2006.

Cita MLA (8a ed.)

SpringerLink (Online service), et al. Physics of Active Galactic Nuclei at All Scales. Springer, 2006.