Ball, D. (1980). America's railroads: The second generation. New York: Norton.
シカゴスタイル引用形Ball, Don. America's Railroads: The Second Generation. New York: Norton, 1980.
MLA引用形式Ball, Don. America's Railroads: The Second Generation. New York: Norton, 1980.
警告: この引用は必ずしも正確ではありません.