English grammar in use : a self-study reference and practice book for intermediate students of English, with answers / Raymond Murphy. - 4th ed.. - Cambridge : Cambridge University press, c2012

Introducing pragmatics in use / Anne O'Keefe, Brian Clancy, Svenja Adolphs. - London ; New York : Routledge, 2011

Introducing pragmatics in use [Risorsa elettronica] / O'Keeffe, Anne and Clancy, Brian and Adolphs, Svenja. - London ; New York : Routledge, 2011

Persuasion and politeness in academic texts : an introduction / Michele Sala. - Bergamo : Celsb, 2008

Politeness : some universals in language usage / Penelope Brown and Stephen C. Levinson. - Cambridge : Cambridge University press, 1987 (1996 repr.)