Boyes, W. J. (1999). Fundamentals of economics. Houghton Mifflin.
Trích dẫn kiểu ChicagoBoyes, William J. Fundamentals of Economics. Houghton Mifflin, 1999.
MLA引文Boyes, William J. Fundamentals of Economics. Houghton Mifflin, 1999.
警告：這些引文格式不一定是100％准確.