Gaya APA
Christie, Agatha. (2016).
The Thirteen Problem .
London:
Harper Collins.
Gaya Chicago
Christie, Agatha.
The Thirteen Problem.
London:
Harper Collins,
2016.
Text.
Gaya MLA
Christie, Agatha.
The Thirteen Problem.
London:
Harper Collins,
2016.
Text.
Gaya Turabian
Christie, Agatha.
The Thirteen Problem.
London:
Harper Collins,
2016.
Print.