Euthenics, the science of controllable environment ; a plea for better living conditions as a first step toward higher human efficiency /
Main Author: | Richards, Ellen Henrietta Swallow, "Mrs. R. H. Richards,", 1842-1911 |
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Format: | Book |
Language: | English |
Published: |
Boston :
Whitcomb & Barrows,
1912.
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Edition: | 2d ed. |
Subjects: |