@book{64768,
	author = {Phillips, Charles L.},
	title = {Signals, systems, and transforms},
	publisher = {Pearson},
	year = {c.2009},
	address = {New Delhi},
	edition = {4th ed.},
	note = {Includes index. http://www.amazon.com/Signals-Systems-Transforms-4th-Edition/dp/0131989235/ref=sr_1_1?ie=UTF8&qid=1399632861&sr=8-1&keywords=signal+systems+and+transforms+phillips+4th}
}