APA Style
Developing Skills for the TOEFL iBT, 2nd Edition Intermediate Combined Book & MP3 CD. (2013).
s.l.:
s.n..
Chicago Style
Developing Skills for the TOEFL iBT, 2nd Edition Intermediate Combined Book & MP3 CD.
.
s.l.:
s.n.,
2013.
Text.
MLA Style
Developing Skills for the TOEFL iBT, 2nd Edition Intermediate Combined Book & MP3 CD.
.
s.l.:
s.n.,
2013.
Text.
Turabian Style
Developing Skills for the TOEFL iBT, 2nd Edition Intermediate Combined Book & MP3 CD.
s.l.:
s.n.,
2013.
Print.