(1979). Productivity indexes for selected industries: 1979 edition. U.S. Department of labor.
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Citação norma Chicago
Productivity Indexes for Selected Industries: 1979 Edition. Washington: U.S. Department of labor, 1979.
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Citação norma MLA
Productivity Indexes for Selected Industries: 1979 Edition. U.S. Department of labor, 1979.
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Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.