The 8th World Computer Congress and Third World Conference on Medical Informatics, Tokyo 1980
ただいま表示中： 日本 - 郵便切手 - 1980 - The 8th World Computer Congress and Third World Conference on Medical Informatics, Tokyo - 1 切手.
1980
The 8th World Computer Congress and Third World Conference on Medical Informatics, Tokyo
29. 9月 WM: なし ミシン目: 13¼
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