APA (7th ed.) Citation

Quirrenbach, A., & Wagner, S. (1991). Correlated radio and optical variability in the BL Lacertae object 0716 + 714. The astrophysical journal. Part 2, Letters, 372, .

Chicago Style (17th ed.) Citation

Quirrenbach, Andreas, and Stefan Wagner. "Correlated Radio and Optical Variability in the BL Lacertae Object 0716 + 714." The Astrophysical Journal. Part 2, Letters 372 (1991).

MLA (9th ed.) Citation

Quirrenbach, Andreas, and Stefan Wagner. "Correlated Radio and Optical Variability in the BL Lacertae Object 0716 + 714." The Astrophysical Journal. Part 2, Letters, vol. 372, 1991.