APA Style
BLACK, Michael, CAPEL, Annette. (2011).
Cambridge objective IELTS : Workbook with answers (7th Edition).
Singapore:
Cambridge University Press.
Chicago Style
BLACK, Michael, CAPEL, Annette.
Cambridge objective IELTS : Workbook with answers.
7th Edition
Singapore:
Cambridge University Press,
2011.
.
MLA Style
BLACK, Michael, CAPEL, Annette.
Cambridge objective IELTS : Workbook with answers.
7th Edition
Singapore:
Cambridge University Press,
2011.
.
Turabian Style
BLACK, Michael, CAPEL, Annette.
Cambridge objective IELTS : Workbook with answers.
7th Edition
Singapore:
Cambridge University Press,
2011.
.