00305nam a2200121Ia 4500082002000000100001800020245003200038260002500070300001700095490006100112500000500173700000500178  a658.514bJ56.MI  aJerome, Harry  aMechanization in industryb  aNew YorkbNBERc1934  axxxii, 484p.  aNational Bureau of Economic Research, publication no. 27  a  a