Gaya APA
Langan, John. (2002).
English skills with readings Fith edition (5).
New York:
McGraw-Hill.
Gaya Chicago
Langan, John.
English skills with readings Fith edition.
5
New York:
McGraw-Hill,
2002.
Text.
Gaya MLA
Langan, John.
English skills with readings Fith edition.
5
New York:
McGraw-Hill,
2002.
Text.
Gaya Turabian
Langan, John.
English skills with readings Fith edition.
5
New York:
McGraw-Hill,
2002.
Print.