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| 090 | _a10796 | ||
| 099 |
_tARC _zALEX23089 _fCorrespondance |
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| 100 | _a20241101ds.d. m||y0frey50 ba | ||
| 200 |
_aPaul Langevin. _eCorrespondance |
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| 300 | _aEn-tête: Tsinghua (Chine) | ||
| 307 | _aCarte de visite | ||
| 327 | _aEn chinois, nom translitéré au recto | ||
| 700 |
_aYeh _bC. S. _4070 |
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