APA (7th ed.) Citation

Whalen, D. J., Johnson, J. L., Smidt, J., Heger, A., Even, W., & Fryer, C. L. (2013). The biggest explosions in the universe. II. The astrophysical journal, 777(2), . https://doi.org/10.1088/0004-637X/777/2/99

Chicago Style (17th ed.) Citation

Whalen, Daniel J., Jarrett L. Johnson, Joseph Smidt, Alexander Heger, Wesley Even, and Chris L. Fryer. "The Biggest Explosions in the Universe. II." The Astrophysical Journal 777, no. 2 (2013). https://doi.org/10.1088/0004-637X/777/2/99.

MLA (9th ed.) Citation

Whalen, Daniel J., et al. "The Biggest Explosions in the Universe. II." The Astrophysical Journal, vol. 777, no. 2, 2013, https://doi.org/10.1088/0004-637X/777/2/99.