Cita APA (7th ed.)

Baigent, M., Cavey, C., & Robinson, N. (2010). English unlimited: Pre-intermediate. Self-study Pack. Workbook with DVD-Rom. B1. Cambridge University Press.

Cita Chicago (17th ed.)

Baigent, Maggie, Chris Cavey, i Nick Robinson. English Unlimited: Pre-intermediate. Self-study Pack. Workbook with DVD-Rom. B1. Cambridge: Cambridge University Press, 2010.

Cita MLA (9th ed.)

Baigent, Maggie, et al. English Unlimited: Pre-intermediate. Self-study Pack. Workbook with DVD-Rom. B1. Cambridge University Press, 2010.