Japan. Kōseishō. Tōkei Chōsabu. (1949). Kōsei tōkei geppō =: The monthly bulletin of the welfare statistics. Kōseishō Danjin Kanbō Tōkei Chōsabu.
Chicago-referens (17:e uppl.)Japan. Kōseishō. Tōkei Chōsabu. Kōsei Tōkei Geppō =: The Monthly Bulletin of the Welfare Statistics. Tōkyō: Kōseishō Danjin Kanbō Tōkei Chōsabu, 1949.
MLA-referens (8:e uppl.)Japan. Kōseishō. Tōkei Chōsabu. Kōsei Tōkei Geppō =: The Monthly Bulletin of the Welfare Statistics. Kōseishō Danjin Kanbō Tōkei Chōsabu, 1949.
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