Katalog Biblioteki ; oai:delibra.bg.polsl.pl:9060
Sep 30, 2014
Aug 30, 2013
469
https://delibra.bg.polsl.pl/publication/9728
Edition name | Date |
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1936, Coal Age : devoted to the operating, technical and business problems of the coal-mining industry, Vol. 41, No. 1 | Sep 30, 2014 |