Gaya APA
Langan, John. (2001).
College writing skills with readings + CD (5th. ed.).
Boston:
McGraw-Hill.
Gaya Chicago
Langan, John.
College writing skills with readings + CD.
5th. ed.
Boston:
McGraw-Hill,
2001.
Text.
Gaya MLA
Langan, John.
College writing skills with readings + CD.
5th. ed.
Boston:
McGraw-Hill,
2001.
Text.
Gaya Turabian
Langan, John.
College writing skills with readings + CD.
5th. ed.
Boston:
McGraw-Hill,
2001.
Print.