(1825). Facts illustrative of the character of the anthracite, or Lehigh coal found in the great mines at Mauch Chunk: In possession of the Lehigh Coal and Navigation Company. [New York: s.n..

Facts Illustrative of the Character of the Anthracite, or Lehigh Coal Found in the Great Mines At Mauch Chunk: In Possession of the Lehigh Coal and Navigation Company. [New York: s.n., 1825.

Facts Illustrative of the Character of the Anthracite, or Lehigh Coal Found in the Great Mines At Mauch Chunk: In Possession of the Lehigh Coal and Navigation Company. [New York: s.n., 1825.