Urrutia, M. (1969). The development of the Colombian labor movement. Yale University Press.
芝加哥风格引文Urrutia, Miguel. The Development of the Colombian Labor Movement. New Haven: Yale University Press, 1969.
MLA引文Urrutia, Miguel. The Development of the Colombian Labor Movement. Yale University Press, 1969.
警告：这些引文格式不一定是100％准确.