Nickels, W. G. (1987). Understanding business (4th ed.). Times Mirror.
芝加哥风格引文Nickels, William G. Understanding Business. 4th ed. Toronto: Times Mirror, 1987.
MLA引文Nickels, William G. Understanding Business. 4th ed. Times Mirror, 1987.
警告：这些引文格式不一定是100％准确.