APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Hay, Peter. An Introduction to U.S. Law. 2nd ed. Austin [etc.]: Butterworths, 1991.

MLA (9th ed.) Citation

Hay, Peter. An Introduction to U.S. Law. 2nd ed. Butterworths, 1991.