Publication of Production and Profits in Coal. hearings before the United States Senate Committee on Manufactures, Sixty-Sixth Congress, third session, on Jan. 15, 18-22, 24-29, 31, 1921. Vol. 1 :

Publication of Production and Profits in Coal. hearings before the United States Senate Committee on Manufactures, Sixty-Sixth Congress, third session, on Feb. 12, 14, 15, 1921.
Published: (1921)

Publication of Production and Profits in Coal. hearings before the United States Senate Committee on Manufactures, Sixty-Sixth Congress, third session, on Feb. 2-5, 7-11, 1921.
Published: (1921)

Statistics of coal : the geographical and geological distribution of mineral combustibles or fossil fuel, including, also, notices and localities of the various mineral bituminous substances employed in arts and manufactures ... embracing, from official reports of the great coal-producing countries, the respective amounts of their production, consumption and commercial distribution, in all parts of the world, together with their prices, tariffs, duties and international regulations ... with incidental statements of the statistics of iron manufactures ... /
by: Taylor, Richard C. (Richard Cowling), 1789-1851
Published: (1848)

Coal facts.
Published: (1975)