BIBLIOGRAFÍA RECOMENDADA

Collins COBUILD Advanced Dictionary of English. Collins ELT, 2012. 

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

Cunningham, Gillie, Jan Bell, and Theresa Clementson. Face2face Advanced. Student’s Book and DVD Rom. Cambridge University Press, 2013. 

Downes, Colm. Cambridge English for Job Hunting. Cambridge University Press, 2008.

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

---. Cambridge Grammar for CAE and Proficiency with Answers and Audio CDs. Cambridge University Press, 2009.

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

OED. Oxford English Dictionary. Oxford University Press, 2017, www.oed.com. Accessed 1 July 2016.

The Purdue OWL Family of Sites. The Writing Lab and OWL at Purdue and Purdue University, 2008, owl.english.purdue.edu/owl. Accessed 1 July 2016.

Swan, Michael. Practical English Usage. Oxford University Press, 1996.

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