Plummer, C. (1985). Introduction to physical geology. Macmillan.
芝加哥风格引文Plummer, Charles. Introduction to Physical Geology. New York: Macmillan, 1985.
MLA引文Plummer, Charles. Introduction to Physical Geology. Macmillan, 1985.
警告：这些引文格式不一定是100％准确.
APA引文