Reubens, B. G. (1970). The hard-to-employ: European programs. Columbia University Press.
芝加哥风格引文Reubens, Beatrice G. The Hard-to-employ: European Programs. New York: Columbia University Press, 1970.
MLA引文Reubens, Beatrice G. The Hard-to-employ: European Programs. Columbia University Press, 1970.
警告：这些引文格式不一定是100％准确.