APA引文

Freeman,Richard B. (1979). Labor economics (2.). Prentice Hall,INC.

Chicago Edition Citation

Freeman,Richard B. Labor Economics. 2. London: Prentice Hall,INC, 1979.

MLA引文

Freeman,Richard B. Labor Economics. 2. Prentice Hall,INC, 1979.

警告：這些引文格式不一定是100％准確.