BIBLIOGRAFÍA RECOMENDADA

Collins COBUILD Advanced Dictionary of English. London: Collins ELT, 2012. Print.

Collins COBUILD Students’ Dictionary plus Grammar (Book & CD). London: Collins ELT, 2005. Print.

Cunningham, Gillie, Jan Bell, and Theresa Clementson. Face2face Advanced. Student’s Book and DVD Rom. Cambridge: CUP, 2013. Print

Downes, Colm. Cambridge English for Job Hunting. Cambridge: CUP, 2008. Print.

Hewings, Martin. Advanced Grammar in Use: a Self-study Reference and Practice Book for Advanced Learners of English; with Answers and CD-ROM. Cambridge: CUP, 2013. Print.

---. Cambridge Grammar for CAE and Proficiency with Answers and Audio CDs. Cambridge: CUP, 2009.Print.

Hopkins, Diana, and Pauline Cullens. Cambridge Grammar for IELTS with Answers: a Self-study Grammar Reference and Practice. Cambridge: CUP, 2007. Print.

OED. Oxford English Dictionary. OUP. Web. 1 July 2014.

Swan, Michael. Practical English Usage. Oxford: OUP, 1996. Print.

The Purdue OWL Family of Sites. The Writing Lab and OWL at Purdue and Purdue U, 2008. Web. 1 July 2014.

Vince, Michael. Advanced Language Practice: English Grammar and Vocabulary. Oxford: Macmillan, 2009. Print.