APA (7th ed.) Citation

ProQuest (Firm), Maguire, W., & McMahon, A. M. S. (2011). Analysing variation in English. Cambridge University Press.

Chicago Style (17th ed.) Citation

ProQuest (Firm), Warren Maguire, and April M. S. McMahon. Analysing Variation in English. Cambridge ; New York: Cambridge University Press, 2011.

MLA (9th ed.) Citation

ProQuest (Firm), et al. Analysing Variation in English. Cambridge University Press, 2011.