Brown, Gordon S. Principles of servomechanisms : dynamics and synthesis of closed-loop control systems / Gordon S. Brown; Donald P. Campbell - New York : John Wiley & Sons, 1948 [Printing 1958]. - xiii, 400 p. : ill. ; 25 cm. Includes Bibliography and Index. Subjects--Topical Terms: Servomechanisms Dewey Class. No.: 629.8323 / BRP 1958