Kindai Nihon no seishō - Tsuchiya, Takao 1896-1988 (Keizai Ōraisha, 1968)
[Die großen Regierungslieferanten Japans i. d. Neuzeit, jap.]. - Actually an unrevised reprint of 1956 ed. published under title: Nihon no seishō. Cf. Pref