Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 : Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 [electronic resource] /
Herbert M. Wilson
- Project Gutenberg, 2006
- Project Gutenberg 18448 .
Public domain in the USA.
Electronic text
Civil engineering -- Periodicals Building materials Coal mines and mining -- Safety measures Fuel