Gregg, C. F. (1974). The ten black pearls: A tale without a moral. White Lion Publishers.
芝加哥风格引文Gregg, Cecil Freeman. The Ten Black Pearls: A Tale Without a Moral. London: White Lion Publishers, 1974.
MLA引文Gregg, Cecil Freeman. The Ten Black Pearls: A Tale Without a Moral. White Lion Publishers, 1974.
警告：这些引文格式不一定是100％准确.