@book{2,
	author = {Sommerville, Ian and  Campos Olguín, Víctor },
	title = {Ingeniería del software /},
	publisher = {Pearson ; Addison Wesley,},
	year = {2011.},
	address = {Madrid : },
	edition = {9a. ed.},
	url = {https://isae.metabiblioteca.org/cgi-bin/koha/opac-retrieve-file.pl?id=474cf16d148186597d37cdb89acce3c2}
}