Lieb, R. C. (1974). Labor in the transportation industries. Praeger.
芝加哥风格引文Lieb, Robert C. Labor in the Transportation Industries. New York: Praeger, 1974.
MLA引文Lieb, Robert C. Labor in the Transportation Industries. Praeger, 1974.
警告：这些引文格式不一定是100％准确.