Population by Occupation (Major Classification) and by Occupational Status, Age, and Marital Status (Population census on Oct. 1, 1930) : Statistical Yearbook of Imperial Japan 56 (1937) Table 14

PERIOD: Population census on Oct. 1, 1930. SOURCE: [Survey by the Statistics Bureau, Imperial Cabinet].

时期：1930年10月1日的人口普查。
来源：[帝国内阁统计局调查]。