Navarro, S. S. (1981). Factor proportions and the structure of international trade. University of the Philippines, School of Economics.
芝加哥风格引文Navarro, Susan S. Factor Proportions and the Structure of International Trade. [Quezon City]: University of the Philippines, School of Economics, 1981.
MLA引文Navarro, Susan S. Factor Proportions and the Structure of International Trade. University of the Philippines, School of Economics, 1981.
警告：这些引文格式不一定是100％准确.