Gaya APA
Work on your Vocabulary Elementary A1. (2013).
London:
HarperCollins Publishers.
Gaya Chicago
Work on your Vocabulary Elementary A1.
.
London:
HarperCollins Publishers,
2013.
Text.
Gaya MLA
Work on your Vocabulary Elementary A1.
.
London:
HarperCollins Publishers,
2013.
Text.
Gaya Turabian
Work on your Vocabulary Elementary A1.
London:
HarperCollins Publishers,
2013.
Print.