The origin and constitution of coal / by Reinhardt Thiessen.

Antzeko izenburuak

• Modern and ancient coal-forming environments / edited by James C. Cobb and C. Blaine Cecil.
  Argitaratua: (1993)
• Coal : its properties, analysis, classification, geology, extraction, uses and distribution / by Elwood S. Moore.
  nork: Moore, Elwood S., 1878-
  Argitaratua: (1940)
• Geology of coal, examination of coal properties, drifts, slopes, and shafts, methods of working.
  Argitaratua: (1907)
• Coal fields and coal resources of Canada / by D. B. Dowling.
  nork: Dowling, D. B. (Donaldson Bogart), 1858-1925.
  Argitaratua: (1915)
• The Yampa coal field, Routt county, Colorado / by N.M. Fenneman and Hoyt S. Gale, with a chapter on the character and use of the Yampa coals by Marius R. Campbell.
  nork: Fenneman, Nevin Melancthon, 1865-1945.
  Argitaratua: (1906)