APA Style
BLACK, Michael, CAPEL, Annette. (2006).
Cambridge Objective IELTS: Workbook .
Singapore:
Cambridge University Press.
Chicago Style
BLACK, Michael, CAPEL, Annette.
Cambridge Objective IELTS: Workbook.
Singapore:
Cambridge University Press,
2006.
.
MLA Style
BLACK, Michael, CAPEL, Annette.
Cambridge Objective IELTS: Workbook.
Singapore:
Cambridge University Press,
2006.
.
Turabian Style
BLACK, Michael, CAPEL, Annette.
Cambridge Objective IELTS: Workbook.
Singapore:
Cambridge University Press,
2006.
.