Orley C. Ashenfelter and David Card. (1999). Handbook of Labor Economics. ELSEVIER.
芝加哥风格引文Orley C. Ashenfelter and David Card. Handbook of Labor Economics. ELSEVIER, 1999.
MLA引文Orley C. Ashenfelter and David Card. Handbook of Labor Economics. ELSEVIER, 1999.
警告：这些引文格式不一定是100％准确.