APA (7th ed.) Citation

Quirrenbach, A. (1989). Rapid variability of extragalactic radio sources. Nature, 337, .

Chicago Style (17th ed.) Citation

Quirrenbach, Andreas. "Rapid Variability of Extragalactic Radio Sources." Nature 337 (1989).

MLA (9th ed.) Citation

Quirrenbach, Andreas. "Rapid Variability of Extragalactic Radio Sources." Nature, vol. 337, 1989.

Warning: These citations may not always be 100% accurate.