Ben Goldstein, & Ben Goldstein; Maggie Baigent. (2011). English Unlimited. C1, Advanced self-study pack (workbook with DVD-ROM). Cambridge: Cambridge University Press.
Citação norma ChicagoBen Goldstein, e Ben Goldstein; Maggie Baigent. English Unlimited. C1, Advanced Self-study Pack (workbook With DVD-ROM). Cambridge: Cambridge University Press, 2011.
Citação norma MLABen Goldstein, e Ben Goldstein; Maggie Baigent. English Unlimited. C1, Advanced Self-study Pack (workbook With DVD-ROM). Cambridge: Cambridge University Press, 2011.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.