Berndt, E. R. (1997). Is price inflation different for the elderlyn: An empirical analysis of prescription drugs. National Bureau of Economic Research.
芝加哥风格引文Berndt, E R. Is Price Inflation Different for the Elderlyn: An Empirical Analysis of Prescription Drugs. Cambridge: National Bureau of Economic Research, 1997.
MLA引文Berndt, E R. Is Price Inflation Different for the Elderlyn: An Empirical Analysis of Prescription Drugs. National Bureau of Economic Research, 1997.
警告：这些引文格式不一定是100％准确.