"Coal : backbone of national progress."; "Battle, John D."; "National Coal Association."; "Coal--United States.", "Coal mines and mining--United States."; "Battle, John D."; "1955"; "

Pamphlet. \"By John D. Battle, Assistant to the President, National Coal Association, Washington, D.C., excerpts from speech, June 6, 1955, Southeastern Retail Coal Association, Augusta, Ga.\"

"; ""; "P20375"; "pec"; "National Coal Association.", "Coal mines and mining--United States.", "Coal--United States."; "14256"; .