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1Nihon no shimai jichitai ichiran Japanese local government international affiliation directory /日本の姉妹自治体一覽 Japanese local government international affiliation directory /Published 1996
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2Nihon no shimai jichitai ichiran Japanese local government international affiliation directory /日本の姉妹自治体一覽 Japanese local government international affiliation directory /Published 2002
Book