APA引文

Posner, R. A. (1993). The problems of jurisprudence. Universal.

Chicago Edition Citation

Posner, Richard A. The Problems of Jurisprudence. N.Delhi: Universal, 1993.

MLA引文

Posner, Richard A. The Problems of Jurisprudence. Universal, 1993.

警告：这些引文格式不一定是100％准确.