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National Industrial Conference Board
Books by National Industrial Conference Board
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3
books found
Sickness insurance or sickness prevention?
By:
National Industrial Conference Board
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Hours of work as related to output and health of workers: m…
By:
National Industrial Conference Board
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Wages and hours in American manufacturing industries July, …
By:
National Industrial Conference Board
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![Hours of work as related to output and health of workers: metal manufacturing industries [1897]](https://www.ebooknetworking.net/books/142/977/med1429774851.jpg)
![Wages and hours in American manufacturing industries July, 1914-January, 1922 ...: National Industrial Conference Board [1913]](https://www.ebooknetworking.net/books/142/977/med1429774932.jpg)