Biber, D., & Gray, B. (2016). Grammatical complexity in a academic english: Linguistic change in writing. Cambridge University Press.
Chicago Edition CitationBiber, Douglas, and Bethany Gray. Grammatical Complexity in a Academic English: Linguistic Change in Writing. United Kingdom: Cambridge University Press, 2016.
MLA Edition CitationBiber, Douglas, and Bethany Gray. Grammatical Complexity in a Academic English: Linguistic Change in Writing. Cambridge University Press, 2016.
Warning: These citations may not always be 100% accurate.