905 resultados para Labor and laboring classes--United States
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"January, 1989."
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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"September 28, 2004"--Pt. 3.
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"May 6, 1992, Washington, DC"--Pt. 3.
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Mode of access: Internet.
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"Literature cited": p. 419-439.