Gaya APA
Widmark, Martin. (2009).
The Hotel Mystery (Cet. 3.--).
Jakarta:
Erlangga.
Gaya Chicago
Widmark, Martin.
The Hotel Mystery.
Cet. 3.--
Jakarta:
Erlangga,
2009.
Text.
Gaya MLA
Widmark, Martin.
The Hotel Mystery.
Cet. 3.--
Jakarta:
Erlangga,
2009.
Text.
Gaya Turabian
Widmark, Martin.
The Hotel Mystery.
Cet. 3.--
Jakarta:
Erlangga,
2009.
Print.