. . . . . "The acceptable replacement of imported oil with coal the staff report to the President's Commission on Coal"@en . . "Staff findings" . "Staff findings"@en . . . . . . . "The acceptable replacement of imported oil with coal : the staff report to the President's Commission on Coal"@en . "The acceptable replacement of imported oil with coal : the staff report to the President's Commission on Coal" . . . . . . . . . . . . . .