Comparison of an eight-hour plant and a ten-hour plant
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Bibliographic Information
Comparison of an eight-hour plant and a ten-hour plant
（Work, its rewards and discontents）
Arno Press, 1977
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Note
Reprint of the 1920 ed. published by the Govt. Print. Off., Washington, which was issued as Public health bulletin no. 106
Includes bibliographical references