@book{520,
	author = {Gerrish, Howard H.},
	title = {Transistor electronics /},
	publisher = {Goodheart-Willcox Pub,},
	year = {1981.},
	address = {[S.l.] :},
	edition = {Rev Sub ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0870063944/chopaconline-20}
}