@book{166563,
	author = {Deitel, Harvey M.},
	title = {An Introduction to operating systems: Including case studies in unix, OS/2, MS-DOS, macintosh, UM,MVS, open systems},
	publisher = {Massachusetts : Addison-Wesley,},
	year = {1999},
	edition = {2nd ed.},
	note = {withdrawn on 29 July 2015}
}