Songs and Ballads of the Anthracite Miner. A seam of folklore which once ran through life in the hard coal fields of Pennsylvania. George G. Korson
The patent wrought iron air-tight gas consuming furnace with permanent wrought iron radiator : for burning anthracite and bituminous coal, coke or wood. J. Reynolds and Son
IS 9127-2: Methods for the Petrographic Analysis of Bituminous Coal and Anthracite, Part 2: Method of Preparing Coal Samples Bureau of Indian Standards