एपीए उद्धरण

Sheldon, S. (2013). Doomsday conspiracy. Harper Collins.

शिकागो स्टाइल उद्धरण

Sheldon, Sidney. Doomsday Conspiracy. Uttar Pradesh: Harper Collins, 2013.

एमएलए उद्धरण

Sheldon, Sidney. Doomsday Conspiracy. Harper Collins, 2013.