Boyes, W. J., & Melvin, M. (1991). Economics. Houghton Mifflin.
芝加哥风格引文Boyes, William J., 与 Michael Melvin. Economics. Boston: Houghton Mifflin, 1991.
MLA引文Boyes, William J., 与 Michael Melvin. Economics. Houghton Mifflin, 1991.
警告：这些引文格式不一定是100％准确.