# | Year | Bibliographical Data | Type / Abbreviation | Linked Data |
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1 | 1911 | Kohl, Paul ; Kleeberg, Paul. China, seine Post und seine Freimarken, 1878-1910. (Chemnitz : Kohl, 1911). | Publication / KohlP1 | |
2 | 1966 | Kohl, Paul. Briefmarken Handbuch : China und Formosa. (Taipei : Cathay Philatelic Library, 1966). | Publication / KohlP2 |
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