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Proceedings of the Engineers' Society of Western Pennsylvania
Engineers' Society of Western Pennsylvania
出版Engineers' Society of Western Pennsylvania., 1908
URLhttp://books.google.com.hk/books?id=P1rOAAAAMAAJ&hl=&source=gbs_api
註釋Appended to v. 12 are 15 articles on "methods for the analysis of ores, &c.," 101 p.