APA引文
Hester, J. J. (2007). 21st century astronomy (2nd ed.). W.W. Norton.
芝加哥风格引文
Hester, John Jeffrey. 21st Century Astronomy. 2nd ed. New York: W.W. Norton, 2007.
MLA引文
Hester, John Jeffrey. 21st Century Astronomy. 2nd ed. W.W. Norton, 2007.
警告：这些引文格式不一定是100％准确.