Chen, Chih-fan Elements of control systems analysis : classical and modern approaches / Chih-fan Chen & I. John Haas - Englewood Cliffs : Prentice-Hall , 1968 - viii, 471p. : ill. ; 20 cm. - Prentice-Hall instrumentation and control series . Includes bibliographical references and index. Subjects--Topical Terms: ComputersControl theoryMathematics in economics Dewey Class. No.: 510.78 / CHI