@book{69683,
	author = {Dorf, Richard C.},
	title = {Modern control system},
	publisher = {Dorling Kindersley(India)Pvt.Ltd. of Pearson Education},
	year = {c.2008},
	address = {New Dehli},
	edition = {11th ed.},
	note = {Includes Index http://www.amazon.com/Modern-Control-Systems-11-e/dp/8131718875/ref=sr_1_1?s=books&ie=UTF8&qid=1399550187&sr=1-1&keywords=9788131718872}
}