The teacher's health a study in the hygiene of an occupation
| Auteur principal: | |
|---|---|
| Format: | Livre |
| Langue: | English |
| Publié: |
Boston, New York [etc.]
Houghton Mifflin company
[c1913].
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| Collection: | Riverside educational monographs, ed. by H. Zuzzallo
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| Sujets: |