HARTMANN, W. K. (1985). Astronomy the cosmic journey.-- Ed. 3. Wadsworth Pub. Co.
芝加哥风格引文HARTMANN, William K. Astronomy the Cosmic Journey.-- Ed. 3. Belmont: Wadsworth Pub. Co, 1985.
MLA引文HARTMANN, William K. Astronomy the Cosmic Journey.-- Ed. 3. Wadsworth Pub. Co, 1985.
警告：这些引文格式不一定是100％准确.