Gaya APA
Langan, John. (2006).
English Skills with Readings Sixth Edition (6).
New York:
McGraw-Hill.
Gaya Chicago
Langan, John.
English Skills with Readings Sixth Edition.
6
New York:
McGraw-Hill,
2006.
Text.
Gaya MLA
Langan, John.
English Skills with Readings Sixth Edition.
6
New York:
McGraw-Hill,
2006.
Text.
Gaya Turabian
Langan, John.
English Skills with Readings Sixth Edition.
6
New York:
McGraw-Hill,
2006.
Print.