@book{56,
	author = {Tanenbaum, Andrew S.},
	title = {Sistemas operativos modernos /},
	publisher = {Pearson Educación,},
	year = {2009.},
	address = {México, D. F. :},
	edition = {3a ed.},
	url = {https://isae.metabiblioteca.org/cgi-bin/koha/opac-retrieve-file.pl?id=9a5dbc13476f13fdce95c0aed7d2a162}
}