Jeffreys, H. (1976). The earth: Its origin, history, and physical constitution (6th ed.). Cambridge University Press.
芝加哥风格引文Jeffreys, Harold. The Earth: Its Origin, History, and Physical Constitution. 6th ed. Cambridge [Eng.] ; New York: Cambridge University Press, 1976.
MLA引文Jeffreys, Harold. The Earth: Its Origin, History, and Physical Constitution. 6th ed. Cambridge University Press, 1976.
警告：这些引文格式不一定是100％准确.