Quirrenbach, A. (1991). Intraday variability of extragalactic radio sources. Variability of active galactic nuclei.
Chicago Style (17th ed.) CitationQuirrenbach, Andreas. "Intraday Variability of Extragalactic Radio Sources." Variability of Active Galactic Nuclei 1991.
MLA (9th ed.) CitationQuirrenbach, Andreas. "Intraday Variability of Extragalactic Radio Sources." Variability of Active Galactic Nuclei, 1991.
Warning: These citations may not always be 100% accurate.