@book{129504,
	author = {Goralski, Walter. and ebrary, Inc.},
	title = {SONET/SDH},
	publisher = {McGraw-Hill,},
	year = {c2002.},
	address = {New York :},
	edition = {3rd ed.},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10152906}
}