Fuel tests with Illinois coal : complied from etest made by the Technologic Branch of the United States Geological Survey at the St. Louis Mo. fuel testing plant, 1904-June 30, 1907 / by L.P. Breckenridge and Paul Diserens
Breckenridge, L. P. (Lester Paige), 1858-1940; Geological Survey (U.S.). Technologic Branch; Diserens, Paul