Title: Daiichiji dōza to Sumitomo : dō bōeki to bakufu no dō seisaku : furoku dōya, fukiya no hensen ni tsuite ; Senʾoku Kauemon no Nagasaki ni tsuite no kakitsuke /
Authors: Kobata, Atsushi, 1905-2001; Sumitomo Shūshishitsu.
Publisher: Sumitomo Shūshishitsu,
Year: 1980
Subjects: Sumitomo Zaibatsu History.; Copper industry and trade Japan History.; Copper mines and mining Japan History.