Gaya APA
Harris, Michael. (2000).
Opportunities Pre-Intermediate .
:
Pearson Longman.
Gaya Chicago
Harris, Michael.
Opportunities Pre-Intermediate.
:
Pearson Longman,
2000.
Text.
Gaya MLA
Harris, Michael.
Opportunities Pre-Intermediate.
:
Pearson Longman,
2000.
Text.
Gaya Turabian
Harris, Michael.
Opportunities Pre-Intermediate.
:
Pearson Longman,
2000.
Print.