Não informado. (1958). Permanent Way. Japan Railway Civil Engineering.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Permanent Way. Tokyo: Japan Railway Civil Engineering, 1958.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Permanent Way. Japan Railway Civil Engineering, 1958.
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