01471oam 2200397 a 450 991070148650332120120420153133.0(CKB)5470000002418209(OCoLC)784830536(OCoLC)777019127(EXLCZ)99547000000241820920120408d1971 ua 0engurbn||||||abpurbn||||||adatxtrdacontentcrdamediacrrdacarrierFeedback mechanisms in the historical collections of the National Museum of History and Technology[electronic resource] /by Otto MayrWashington, [D.C.] :Smithsonian Institution Press,1971.1 online resource (x, 133 pages) illustrationsSmithsonian studies in history and technology ;no. 12Title from title screen (viewed on Apr. 20, 2012).Includes bibliographical references and index.Feedback control systemsHistoryGovernors (Machinery)HistoryFeedback control systemsHistory.Governors (Machinery)History.Mayr Otto11758Smithsonian Institution.OCLCEOCLCEGPOBOOK9910701486503321Feedback mechanisms in the historical collections of the National Museum of History and Technology3535536UNINA