@book{18840,
	author = {Eco, Umberto, },
	title = {Trattato di semiotica generale.},
	publisher = {Bompiani},
	year = {1975.},
	series = {Il Campo semiotico. Studi Bompiani},
	address = {Milano},
	note = {Issued first in English under title: theory of semiotics.}
}