BOYCE, R. R. (1982). Geographic perspectives on global problems: An introduction to geography. John Wiley and Sons.
芝加哥风格引文BOYCE, Ronald Reed. Geographic Perspectives on Global Problems: An Introduction to Geography. New York: John Wiley and Sons, 1982.
MLA引文BOYCE, Ronald Reed. Geographic Perspectives on Global Problems: An Introduction to Geography. John Wiley and Sons, 1982.
警告：这些引文格式不一定是100％准确.