@book{6823,
	author = {Widdowson, H. G.},
	title = {Aspects of language teaching /},
	publisher = {Oxford University Press,},
	year = {1990.},
	address = { Oxford ; New York ; Toronto : },
	edition = {First published. Reimpresión, 2012.},
	note = {Incluye índice.}
}