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James Thom Beard · Franklin Classics
432 sayfa · 2018
Kategori yok
452 sayfa · 2018
James Thom Beard · McGraw-Hill
433 sayfa · 1920
Mine gases / Coal mines and mining / Mine ventilation
James Thom Beard · John Wiley & sons
170 sayfa · 1894
Mine ventilation
James Thom Beard · Wiley
402 sayfa · 1908
Mine explosions / Mine gases / Safety lamps
James Thom 1855-1941 Beard · Creative Media Partners, LLC
Sayfa sayısı yok · 2023
