Sanyō Tokushu Seikō sanjūnenshi山陽特殊製鋼三十年史Sanyō Tokushu SeikōJapaneseBook1964Himeji-shi : Sanyō Tokushu Seikō Kabushiki Kaisha, Shōwa 39 [1964]姬路市 : 山陽特殊製鋼株式 会社, 昭和39 [1964]Sanʼyō Tokushu Seikō Kabushiki Kaisha—HistoryBook