@book{173346,
	author = {Wittgenstein, Ludwig. and Russell, Bertrand,},
	title = {Tractatus logico-philosophicus / },
	publisher = {Routledge & Kegan Paul, },
	year = {1958.},
	series = {International library of psychology philosophy and scientific method},
	address = {London : },
	edition = {7th imp.},
	note = {Índice.}
}