Determination of ash in coals unusually high in calcite and pyrite - Rees, Orin Wainwright, 1898-; Selvig, W. A. (Walter Alfred), b. 1886.; United States. Bureau of Mines (Urbana, Ill., 1942)
"Reprinted from Industrial and engineering chemistry, analytical edition, vol. 14, no. 3, March 15, 1942."
At head of title: State of Illinois, Dwight H. Green, governor. Dept. of registration and education, Frank G. Thompson, director. Division of the State geological survey, M.M. Leighton, chief, Urbana.
"Literature cited": p. 10.
Mode of access: Internet.
Keywords: Coal -- Analysis