Kirjat James Donald Forrester
The Effects Of Rope Speed And Moisture On The Use Of Scrapers In Mining
James Donald Forrester, Ronald Lad Carmichael
-35% koodilla BOOKS
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The Process of Underground Electrocarbonization School of Mines and Metallurgy, Technical Series, No. 78
James Donald Forrester, Erich Sarapuu
-35% koodilla BOOKS
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A Study of Mine Scraper Buckets and Their Efficiency School of Mines and Metallurgy, V17, No. 2
James Donald Forrester, Austin Bond Clayton
-35% koodilla BOOKS
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