APA引文

Lipsey, R. (1999). Principles of economics. O U P.

芝加哥风格引文

Lipsey, Richard. Principles of Economics. Oxford: O U P, 1999.

MLA引文

Lipsey, Richard. Principles of Economics. O U P, 1999.

警告：这些引文格式不一定是100％准确.