Cowan, S. (2004). Demand shifts and imperfect competition. Department of Economics (University of Oxford).
芝加哥风格引文Cowan, S. Demand Shifts and Imperfect Competition. Department of Economics (University of Oxford), 2004.
MLA引文Cowan, S. Demand Shifts and Imperfect Competition. Department of Economics (University of Oxford), 2004.
警告：这些引文格式不一定是100％准确.