@book{47939,
	author = {Swales, John},
	title = {Genre analysis :},
	publisher = {Cambridge University Press,},
	year = {1990.},
	address = {Cambridge :},
	note = {Incluye índice.},
	url = {https://firstsearch.oclc.org/WebZ/DCARead?standardNoType=1&standardNo=0521338131:srcdbname=worldcat:fromExternal=true&sessionid=0}
}