APA引文

Ashenfelter, O. (1999). Labor economics. Worth.

芝加哥风格引文

Ashenfelter, Orley. Labor Economics. New York: Worth, 1999.

MLA引文

Ashenfelter, Orley. Labor Economics. Worth, 1999.

警告：这些引文格式不一定是100％准确.