21e congrès (27e congrès national) tenu à Paris du 15 au 18 sept. 1931. Compte rendu
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| Institution: | CEDIAS-Musée social |
| Format: | TEXT |
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[s.n.] ([S.l.])
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| Online Access: | http://hdl.handle.net/11160/57AEC76F-CE86-4E12-906C-9D6DBED3B47F |
| Published: | 1931 |
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