Johns, G., Frank, G., Anderson, B., & Leigh, R. (2019). Doomsday clock. DC Comics.
Cita Chicago Style (17a ed.)Johns, Geoff, Gary Frank, Brad Anderson, y Rob Leigh. Doomsday Clock. Burbank, CA: DC Comics, 2019.
Cita MLA (8a ed.)Johns, Geoff, et al. Doomsday Clock. DC Comics, 2019.
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