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Report of a Committee Appointed Under Government Notice No. 358 of the 24th February, 1911, to Inquire Into and Report Upon the Most Practicable Means to be Adopted for the Prevention of Explosions of Gas and Dust
South Africa. Department of Mines
其他書名
In the Collieries Situated in the Province of Natal
出版Government Printing and Stationery Office, 1912
URLhttp://books.google.com.hk/books?id=W4_yPQAACAAJ&hl=&source=gbs_api