@book{30515,
	author = {D'Azzo, John Joachim. and Houpis, Constantine H.,},
	title = {Feedback control system analysis and synthesis /},
	publisher = {McGraw-Hill,},
	year = {c1966.},
	series = {McGraw-Hill electrical and electronic engineering series.},
	address = {New York :},
	edition = {2nd ed.}
}