APA (7th ed.) Citation

Whedon, J., Jeanty, G., & Moline, K. (2013). Buffy the vampire slayer. Dark Horse ; Diamond [distributor].

Chicago Style (17th ed.) Citation

Whedon, Joss, Georges Jeanty, and Karl Moline. Buffy the Vampire Slayer. Milwaukie, Or. : London: Dark Horse ; Diamond [distributor], 2013.

MLA (9th ed.) Citation

Whedon, Joss, et al. Buffy the Vampire Slayer. Dark Horse ; Diamond [distributor], 2013.