Cita APA

Sheldon, S. (2017). The doomsday conspiracy (1st.). Morrow.

Chicago Edition Citation

Sheldon, Sidney. The Doomsday Conspiracy. 1st. New York: Morrow, 2017.

Cita MLA

Sheldon, Sidney. The Doomsday Conspiracy. 1st. Morrow, 2017.