Gaya APA
Hopkins, Andy, Potter, Jocelyn. (1994).
Look ahead: classroom course: student's book .
Essex:
Longman.
Gaya Chicago
Hopkins, Andy, Potter, Jocelyn.
Look ahead: classroom course: student's book.
Essex:
Longman,
1994.
Text.
Gaya MLA
Hopkins, Andy, Potter, Jocelyn.
Look ahead: classroom course: student's book.
Essex:
Longman,
1994.
Text.
Gaya Turabian
Hopkins, Andy, Potter, Jocelyn.
Look ahead: classroom course: student's book.
Essex:
Longman,
1994.
Print.