Ferretti, A. P. (1963). National Economics. National Foremen's Institute.
芝加哥风格引文Ferretti, Andrew P. National Economics. Waterford, Conn: National Foremen's Institute, 1963.
MLA引文Ferretti, Andrew P. National Economics. National Foremen's Institute, 1963.
警告：这些引文格式不一定是100％准确.