The fifteenth International congress on hygiene and demography held by Washington, D.C., from September 16 to October 5, 1912
Corporate Authors: | , , |
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Other Authors: | , |
Format: | Conference Proceeding Book |
Language: | English |
Published: |
Washington,
Govt. print. off.,
1913
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Series: | Bulletin (United States. Bureau of Education) ;
1913, no. 18 Bulletin (United States. Bureau of Education) ; 1913, no. 18 Bulletin (United States. Office of Education) 1913, no. 18 |
Subjects: |