Gaya APA
Kilbey, Liz. (2007).
Challenges - workbook 2 .
Essex:
Pearson.
Gaya Chicago
Kilbey, Liz.
Challenges - workbook 2.
Essex:
Pearson,
2007.
Buku.
Gaya MLA
Kilbey, Liz.
Challenges - workbook 2.
Essex:
Pearson,
2007.
Buku.
Gaya Turabian
Kilbey, Liz.
Challenges - workbook 2.
Essex:
Pearson,
2007.
Buku.