Krishna, K. (1998). A New model of quality. National Bureau of Economic Research.
芝加哥风格引文Krishna, Kala. A New Model of Quality. Cambridge: National Bureau of Economic Research, 1998.
MLA引文Krishna, Kala. A New Model of Quality. National Bureau of Economic Research, 1998.
警告：这些引文格式不一定是100％准确.