Veenstra, R. L. (1948). The secret of suffering. Wm. B. Eerdmans Publishing Company.
芝加哥风格引文Veenstra, Rolf L. The Secret of Suffering. Michigan: Wm. B. Eerdmans Publishing Company, 1948.
MLA引文Veenstra, Rolf L. The Secret of Suffering. Wm. B. Eerdmans Publishing Company, 1948.
警告：这些引文格式不一定是100％准确.