@book{9551,
	author = {Berlin, H.},
	title = {555 timer applications sourcebook experiments /},
	publisher = {BPB Publications,},
	year = {1985.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/8176567906/chopaconline-20}
}