@book{9276,
	author = {Alcalde Lancharro, Eduardo},
	title = {Introducción a los sistemas operativos (MS/DOS, UNIX, OS/2, MVS, VMS, OS/400) /},
	publisher = {McGraw Hill,},
	year = {1992.},
	series = {Serie Informática de Gestión},
	address = {España :},
	edition = {1a ed.}
}