APA (7th ed.) Citation

Whedon, J., Jeanty, G., Owens, A., & Chen, J. (2012). Buffy the vampire slayer. Dark Horse Books.

Chicago Style (17th ed.) Citation

Whedon, Joss, Georges Jeanty, Andy Owens, and Jo Chen. Buffy the Vampire Slayer. Milwaukie, Or.: Dark Horse Books, 2012.

MLA (9th ed.) Citation

Whedon, Joss, et al. Buffy the Vampire Slayer. Dark Horse Books, 2012.