@book{54662,
	author = {Das, Apurba. and ebrary, Inc.},
	title = {Line communication system},
	publisher = {New Age International (P) Ltd., Publishers,},
	year = {c2006.},
	address = {New Delhi :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10323303}
}