@book{5700,
	author = {Dorf, Richard C.   and Bishop, Robert H. },
	title = {Modern control systems / },
	publisher = {Pearson Education,},
	year = {c2008 [Reprinted 2009, 2012].},
	address = {Delhi :},
	edition = {11th ed.},
	note = {Includes index. }
}