Carlson, J., Krauskopf, C. B., & Beiser, A. (1993). Study guide to accompany Krauskopf: The physical universe. McGraw-Hill.
芝加哥风格引文Carlson, Jon, Conrad B. Krauskopf, 与 Arthur Beiser. Study Guide to Accompany Krauskopf: The Physical Universe. New York: McGraw-Hill, 1993.
MLA引文Carlson, Jon, et al. Study Guide to Accompany Krauskopf: The Physical Universe. McGraw-Hill, 1993.
警告：这些引文格式不一定是100％准确.