@book{tuson_lletres_2006,
	Address = {Barcelona},
	Author = {Tuson, Jesús},
	Date = {2006},
	Date-Modified = {2016-09-22 20:24:42 +0000},
	Keywords = {general, linguistics, writing},
	Publisher = {Empúries},
	Title = {Lletres sobre lletres}}