@book{226,
	author = {"Chappell, Laura   (editor)"},
	title = {Introduction to cisco router configuration},
	publisher = {Techmedia},
	address = {New Delhi},
	url = {https://www.libgen.is/book/index.php?md5=4A7981ADCB949E5E112F0F58A89F03F4}
}