Books by National Convention of Chiefs and Commissioners of the Various Bureaus of Statistics of Labor in the United States:
Books in the extended shelves:
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National Convention of Chiefs and Commissioners of the Various Bureaus of Statistics of Labor in the United States: Proceedings ... annual convention. (Boston, Mass., [etc.], 1885) (page images at HathiTrust)- National Convention of Chiefs and Commissioners of the Various Bureaus of Statistics of Labor in the United States: Proceedings at the ... annual session of the National Convention of Chiefs and Commissioners of the Various Bureaus of Statistics of Labor (State Journal Co., 1883) (page images at HathiTrust)
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