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1.
図書 |
U.S. Department of Labor, James P. Mitchell, secretary, Bureau of Labor Standards, Paul E. Gurske, director
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2.
図書 |
by Don E. Fehrenbacher
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3.
図書 |
Norman Tucker
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4.
図書 |
by Walter H. Schoewe
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5.
図書 |
United States. Bureau of Labor Standards
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6.
図書 |
AFL-CIO
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7.
図書 |
by Frederic A. Gibbs and Erna L. Gibbs
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8.
図書 |
J. Th. Henrard
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9.
図書 |
Institute of International Education (New York, N.Y.)
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10.
図書 |
by N. B. Eales ; with a foreword by Stanley Kemp
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