APA Style
Christie, Agatha. (1967).
At Bertram's Hotel .
:
Pocket Books.
Chicago Style
Christie, Agatha.
At Bertram's Hotel.
:
Pocket Books,
1967.
Text.
MLA Style
Christie, Agatha.
At Bertram's Hotel.
:
Pocket Books,
1967.
Text.
Turabian Style
Christie, Agatha.
At Bertram's Hotel.
:
Pocket Books,
1967.
Print.