Gaya APA
Langan, John. (1985).
College Writing Skills with Readings .
Singapore:
McGraw-Hill Book Company.
Gaya Chicago
Langan, John.
College Writing Skills with Readings.
Singapore:
McGraw-Hill Book Company,
1985.
Text.
Gaya MLA
Langan, John.
College Writing Skills with Readings.
Singapore:
McGraw-Hill Book Company,
1985.
Text.
Gaya Turabian
Langan, John.
College Writing Skills with Readings.
Singapore:
McGraw-Hill Book Company,
1985.
Print.