00557nam a2200181Ia 4500003000900000008004100009040001600050080001800066100002100084245009600105260003800201300001600239650004100255650001800296650002000314650002000334700002100354IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a621-52bGES-1  aChestnut, Harold 0aServomechanisms and regulating system designbvol. 1cHarold Chestnut and Robert W. Mayer  aNew YorkbJohn Wiley & Sonsc1955  axiii, 505p.  aAstronomy and astrophysics thesaurus  aServo control  aServomechanisms  aStepping motors  aMayer, Robert W.