D'Azzo, John J. Feedback control system analysis and synthesis / John J. D'Azzo, Constantine H. Houpis. - 2nd ed. - New York : McGraw-Hill, 1966. - 824 p. : ill. ; 21 cm. - McGraw-Hill electrical and electronic engineering series. . Includes bibliographical references and index. Subjects--Topical Terms: Feedback control systems.