@book{266756,
	author = {Alcalde Lancharro, Eduardo and Morera Pascual, Juan},
	title = {Introducción a los sistemas operativos : MS/DOS, UNIX, OS/2, MVS, VMS, OS/400},
	publisher = {Mcgraw-Hill},
	year = {1992},
	address = {Madrid},
	note = {(MS/DOS,UNIX,OS/2,MVS,VMS,OS/400)}
}