Cowan, R. (2008). Teacher?s grammar of english: A course book and reference guide (1a edición.). New York: Cambridge University Press.
Chicago Style CitationCowan, Ron. Teacher?s Grammar of English: A Course Book and Reference Guide. 1a edición. New York: Cambridge University Press, 2008.
MLA CitationCowan, Ron. Teacher?s Grammar of English: A Course Book and Reference Guide. 1a edición. New York: Cambridge University Press, 2008.
Warning: These citations may not always be 100% accurate.