Ball, R. S. (1887). The story of heavens (3ª ed.). Casell and Company.
芝加哥风格引文Ball, Robert Stawell. The Story of Heavens. 3ª ed. Casell and Company, 1887.
MLA引文Ball, Robert Stawell. The Story of Heavens. 3ª ed. Casell and Company, 1887.
警告：这些引文格式不一定是100％准确.