@book{8221,
	author = {Nilsson, James William. and Riedel, Susan A.},
	title = {Electric circuits /},
	publisher = {Addison-Wesley Pub. Co.,},
	year = {1993.},
	series = {Addison-Wesley series in electrical and computer engineering},
	address = {Reading, Mass. :},
	edition = {4th ed.}
}