Gaya APA
Dean, Michael. (2004).
opportunities 2: language powerbook .
Inggris:
Pearson Education.
Gaya Chicago
Dean, Michael.
opportunities 2: language powerbook.
Inggris:
Pearson Education,
2004.
Text.
Gaya MLA
Dean, Michael.
opportunities 2: language powerbook.
Inggris:
Pearson Education,
2004.
Text.
Gaya Turabian
Dean, Michael.
opportunities 2: language powerbook.
Inggris:
Pearson Education,
2004.
Print.