Gottheil, F. M. (1996). Principles of economics. South-Western College.
芝加哥风格引文Gottheil, Fred M. Principles of Economics. Illinois: South-Western College, 1996.
MLA引文Gottheil, Fred M. Principles of Economics. South-Western College, 1996.
警告：这些引文格式不一定是100％准确.