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1Published 1943“…Washington: Bureau of Labor Statistics…”
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4Published n.d.“…Bureau of Labor Statistics, U.S. Department of Labor,…”
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5Published 1949.“…Department of Labor, Bureau of Labor Statistics,…”
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6Published [1954]“…United States Department of Labor, Bureau of Labor Statistics,…”
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7Published [1954]“…United States Department of Labor, Bureau of Labor Statistics,…”
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8Published 1938.“…United States Department of Labor. Bureau of Labor Statistics,…”
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9Published [1954]“…United States Department of Labor, Bureau of Labor Statistics,…”
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10Published [1954]“…United States Department of Labor. Bureau of Labor Statistics,…”
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11Published [1954]“…United States Department of Labor, Bureau of Labor Statistics,…”
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12Published [1954]“…United States Department of Labor, Bureau of Labor Statistics,…”
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13Published 1925.“…Bureau of Labor Statistics, United States Department of Labor,…”
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14Published [1950]“…United States Department of Labor. Bureau of Labor Statistics,…”
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15Published [1955]“…United States Department of Labor, Bureau of Labor Statistics,…”
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16Published [1954]“…United States Department of Labor, Bureau of Labor Statistics,…”
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17Published 1963.“…U.S. Department of Labor, Bureau of Labor Statistics,…”
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18Published [1951]“…United States Department of Labor Bureau of Labor Statistics,…”
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19Published 1964.“…United States Department of Labor, Bureau of Labor Statistics,…”
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20Published 1967.“…United States Department of Labor, Bureau of Labor Statistics,…”
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