APA

O'Driscoll N., Scott-Barrett F., . (2003). BEC Vantage Masterclass. Upper Intermediate. New York: Oxford University Press.

Chicago

O'Driscoll N, Scott-Barrett F, . 2003. BEC Vantage Masterclass. Upper Intermediate. New York: Oxford University Press.

Harvard

O'Driscoll N., Scott-Barrett F., . (2003). BEC Vantage Masterclass. Upper Intermediate. New York: Oxford University Press.

MLA

O'Driscoll N, Scott-Barrett F, . BEC Vantage Masterclass. Upper Intermediate. New York: Oxford University Press. 2003.