APA (7th ed.) Citation

Sheldon,Sidney. (1991). The doomsday conspiracy. William Morrow and company inc..

Chicago Style (17th ed.) Citation

Sheldon,Sidney. The Doomsday Conspiracy. New York: William Morrow and company inc., 1991.

MLA (9th ed.) Citation

Sheldon,Sidney. The Doomsday Conspiracy. William Morrow and company inc., 1991.

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