Daitoshi e no tsūkin tsūgaku jinkō, Shōwa gojūen kokusei chōsa = [map] Workers and students commuting to large cities, 1975 population census of Japan.
大都市への通勤通学人口, 昭和50年国勢調查 = Workers and students commuting to large cities, 1975 population census of Japan / 編集總理府統計局.