APA Style
Allen, M. et al
(2007).
IELTS graduation: class CDs 2 (unit 8-10)
.
[s.l.]:
Macmillan.
MLA Style
Allen, Mark. et al.
"IELTS graduation: class CDs 2 (unit 8-10)".
[s.l.]:
Macmillan,
2007.
Audio CD.