Gaya APA
Sheldon, Sidney. (1993).
The Doomsday Conspiracy .
England:
HarperCollins.
Gaya Chicago
Sheldon, Sidney.
The Doomsday Conspiracy.
England:
HarperCollins,
1993.
Buku Teks.
Gaya MLA
Sheldon, Sidney.
The Doomsday Conspiracy.
England:
HarperCollins,
1993.
Buku Teks.
Gaya Turabian
Sheldon, Sidney.
The Doomsday Conspiracy.
England:
HarperCollins,
1993.
Buku Teks.