Tsutomu, K. Japan's steel industry. Tokyo: Rekko Shim Sha.
Trích dẫn kiểu ChicagoTsutomu, Kawasaki. Japan's Steel Industry. Tokyo: Rekko Shim Sha.
Deismireacht MLATsutomu, Kawasaki. Japan's Steel Industry. Tokyo: Rekko Shim Sha.
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