Diario del IX Congreso Internacional de Hygiene y Demografia = . Journal du IXe Congrès Intenacional de Hygiène et de Démographie
| Institution: | International Institute of Social History |
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| Format: | TEXT |
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Madrid.
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/930A44D5-4CD6-4C6A-B097-96670E0F81C7 |