Harvey, C. E. (1986). Coal in Appalachia: An economic analysis. The University Press of Kentucky.
Chicago Style (17th ed.) ZitazioaHarvey, Curtis E. Coal in Appalachia: An Economic Analysis. Lexington, Kentucky: The University Press of Kentucky, 1986.
MLA (9th ed.) ZitazioaHarvey, Curtis E. Coal in Appalachia: An Economic Analysis. The University Press of Kentucky, 1986.
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