Wittels, F., Paul, C., & Paul, E. (1932). Set the children free! G. Allen & Unwin, ltd..
芝加哥风格引文Wittels, Fritz, Cedar Paul, 与 Eden Paul. Set the Children Free! London: G. Allen & Unwin, ltd., 1932.
MLA引文Wittels, Fritz, et al. Set the Children Free! G. Allen & Unwin, ltd., 1932.
警告：这些引文格式不一定是100％准确.