Gaya APA
Langan, John. (2014).
College writing skills with readings (9th ed).
Boston:
McGraw Hill.
Gaya Chicago
Langan, John.
College writing skills with readings.
9th ed
Boston:
McGraw Hill,
2014.
Text.
Gaya MLA
Langan, John.
College writing skills with readings.
9th ed
Boston:
McGraw Hill,
2014.
Text.
Gaya Turabian
Langan, John.
College writing skills with readings.
9th ed
Boston:
McGraw Hill,
2014.
Print.