Producer Cooperatives and Federations (1928) : Statistical Yearbook of Imperial Japan 49 (1930) Table 73

PERIOD: End of every year 1919-1928. By region at 1928 year-end. SOURCE: Statistical Yearbook of Ministry of Agriculture and Forestry Japan; [Directory of Producer Cooperatives and Federations for Major Products].

时期：1919-1928年年末，按地区划分。来源：《日本农林省统计年鉴》；[主要产品生产合作社及联合会名录]。