Armstrong, W. G., Longridge, J. A., & Richardson, T. (1858). Three reports on the use of the steam coals of the "Hartley District" of Northumberland in marine boilers .. J. Weale.
MLA CitationArmstrong, W. G., et al. Three Reports on the Use of the Steam Coals of the "Hartley District" of Northumberland in Marine Boilers .. J. Weale, 1858.
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