PUGEL T A. (2008). INTERNATIONAL ECONOMICS (13TH.). TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
芝加哥风格引文PUGEL T A. INTERNATIONAL ECONOMICS. 13TH. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2008.
MLA引文PUGEL T A. INTERNATIONAL ECONOMICS. 13TH. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2008.
警告：这些引文格式不一定是100％准确.