Gaya APA
Lets Talk 1 : Second Edition. (2008).
New York:
CAMBRIDGE UNIVERSITY PRESS.
Gaya Chicago
Lets Talk 1 : Second Edition.
.
New York:
CAMBRIDGE UNIVERSITY PRESS,
2008.
Text.
Gaya MLA
Lets Talk 1 : Second Edition.
.
New York:
CAMBRIDGE UNIVERSITY PRESS,
2008.
Text.
Gaya Turabian
Lets Talk 1 : Second Edition.
New York:
CAMBRIDGE UNIVERSITY PRESS,
2008.
Print.