00417nam a2200133Ia 4500003000900000008004100009040001600050100002600066245009200092260003200184300001000216490003600226650002100262IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  aJames Vichob, Philips 0aTheory of servo mechanismscPhilips James, Vichob                                        aNew YorkbMcGraw-Hillc1947  a375p.  aM.I.T. radiation series; no. 25  aServo mechanisms