APA引文

Richard,, S. (2000). Principles of contract law (4.). Cavendish.

Chicago Edition Citation

Richard,, Stone. Principles of Contract Law. 4. London: Cavendish, 2000.

MLA引文

Richard,, Stone. Principles of Contract Law. 4. Cavendish, 2000.

警告：這些引文格式不一定是100％准確.