"Morgantown Research Center, Morgantown, W. Va. : research and development."; "United States. Bureau of Mines."; "Morgantown Coal Research Center (U. S.) "; "Power resources--Research."; "United States. Bureau of Mines."; "1963"; "

Pamphlet.

"; ""; "P11051"; "pec"; "Power resources--Research.", "Morgantown Coal Research Center (U. S.) "; "14256"; .