00594nam a2200181Ia 4500082002200000100004900022245008700071260003200158300001400190490004600204500000500250690000600255700000500261952010200266964001700368921001000385999001700395  a658.9653bUn58.SA  aUnited States. Labor Statistics, Bureau of-.  aStudies of automatic technology; a case study of a modernized petroleum refineryb  aWashingtonbThe Auth.c1956  aiii, 44p.  aBureau of Labor Statistics report No. 120  a  a   a  00104070aISIbISId1998-10-08l0o658.9653 Un58.SApDP539r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a16187  c16187d16187