NELLIS JOSEPH G. (1997). ESSENCE OF THE ECONOMY (2ND.). PRENTICE -HALL INTERNATIONAL, INC.
芝加哥风格引文NELLIS JOSEPH G. ESSENCE OF THE ECONOMY. 2ND. NEW DELHI: PRENTICE -HALL INTERNATIONAL, INC, 1997.
MLA引文NELLIS JOSEPH G. ESSENCE OF THE ECONOMY. 2ND. PRENTICE -HALL INTERNATIONAL, INC, 1997.
警告：这些引文格式不一定是100％准确.