Gaya APA
Langan, John. (2008).
College Writing Skills with Readings (Seventh Edition).
Amerika:
McGraw Hill.
Gaya Chicago
Langan, John.
College Writing Skills with Readings.
Seventh Edition
Amerika:
McGraw Hill,
2008.
Text.
Gaya MLA
Langan, John.
College Writing Skills with Readings.
Seventh Edition
Amerika:
McGraw Hill,
2008.
Text.
Gaya Turabian
Langan, John.
College Writing Skills with Readings.
Seventh Edition
Amerika:
McGraw Hill,
2008.
Print.