APA (7th ed.) Citation

Moore, A., Bolland, B., Starkings, R., & Kane, B. (2008). Batman : the killing joke / Alan Moore, writer ; Brian Bolland, art and colors ; Richard Starkings, letterer ; introduction by Tim Sale ; afterword by Brian Bolland ; Batman created by Bob Kane: The killing joke (Deluxe ed.). [Titan].

Chicago Style (17th ed.) Citation

Moore, Alan, Brian Bolland, Richard Starkings, and Bob Kane. Batman : The Killing Joke / Alan Moore, Writer ; Brian Bolland, Art and Colors ; Richard Starkings, Letterer ; Introduction by Tim Sale ; Afterword by Brian Bolland ; Batman Created by Bob Kane: The Killing Joke. Deluxe ed. [London?]: [Titan], 2008.

MLA (9th ed.) Citation

Moore, Alan, et al. Batman : The Killing Joke / Alan Moore, Writer ; Brian Bolland, Art and Colors ; Richard Starkings, Letterer ; Introduction by Tim Sale ; Afterword by Brian Bolland ; Batman Created by Bob Kane: The Killing Joke. Deluxe ed. [Titan], 2008.

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