Gaya APA
Langan, John. (2008).
English Skills with Readings .
Boston:
Mc Graw Hill.
Gaya Chicago
Langan, John.
English Skills with Readings.
Boston:
Mc Graw Hill,
2008.
Text.
Gaya MLA
Langan, John.
English Skills with Readings.
Boston:
Mc Graw Hill,
2008.
Text.
Gaya Turabian
Langan, John.
English Skills with Readings.
Boston:
Mc Graw Hill,
2008.
Print.