@book{51244,
	author = {Tomsho, Greg},
	title = {Guide to operating systems /},
	publisher = {Cengage Learning},
	year = {2021},
	series = {Networking},
	address = {Boston},
	edition = {6th. ed.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.ebooks7-24.com/?il=19728}
}