Cita APA (7a ed.)
(1985). Astrophysics of active galaxies and quasi-stellar objects. University Science Books.
Cita Chicago Style (17a ed.)
Astrophysics of Active Galaxies and Quasi-stellar Objects. Mill Valley, CA: University Science Books, 1985.
Cita MLA (9a ed.)
Astrophysics of Active Galaxies and Quasi-stellar Objects. University Science Books, 1985.
Precaución: Estas citas no son 100% exactas.