Transactions of the twenty-first annual conference of the state and territorial health officers with the United States Public Health Service.
| Korporace: | |
|---|---|
| Typ dokumentu: | Kniha |
| Jazyk: |
angličtina |
| Vydavatel: |
Washington :
Government Printing Office,
1924.
|
| Edice: |
Public Health Bulletin ;
no. 139 |
|
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