APA Style
Christie, Agatha. (1991).
Towards Zero (Reissue edition).
New York:
Penguin Group (USA) Incorporated.
Chicago Style
Christie, Agatha.
Towards Zero.
Reissue edition
New York:
Penguin Group (USA) Incorporated,
1991.
Text.
MLA Style
Christie, Agatha.
Towards Zero.
Reissue edition
New York:
Penguin Group (USA) Incorporated,
1991.
Text.
Turabian Style
Christie, Agatha.
Towards Zero.
Reissue edition
New York:
Penguin Group (USA) Incorporated,
1991.
Print.