APA (7th ed.) Citation

Hay, P. (1991). An introduction to U.S. law (2nd ed.). Butterworth Legal Publishers.

Chicago Style (17th ed.) Citation

Hay, Peter. An Introduction to U.S. Law. 2nd ed. Salem, NH: Butterworth Legal Publishers, 1991.

MLA (9th ed.) Citation

Hay, Peter. An Introduction to U.S. Law. 2nd ed. Butterworth Legal Publishers, 1991.

Warning: These citations may not always be 100% accurate.