APA (7th ed.) Citation

Derrett, J. D. M. (1968). An Introduction to legal systems. Praeger.

Chicago Style (17th ed.) Citation

Derrett, J. Duncan M. An Introduction to Legal Systems. New York: Praeger, 1968.

MLA (9th ed.) Citation

Derrett, J. Duncan M. An Introduction to Legal Systems. Praeger, 1968.