Não informado. (1951). Bulletin of the Faculty of Engineering. Yokohama National University.
Chicago-referens (17:e uppl.)Não informado. Bulletin of the Faculty of Engineering. Yokohama, Japão: Yokohama National University, 1951.
MLA-referens (8:e uppl.)Não informado. Bulletin of the Faculty of Engineering. Yokohama National University, 1951.
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