APA (7th ed.) Citation

Derrett, J. D. M. (1968). An introduction to legal systems. Sweet & Maxwell.

Chicago Style (17th ed.) Citation

Derrett, J. Duncan M. An Introduction to Legal Systems. London: Sweet & Maxwell, 1968.

MLA (8th ed.) Citation

Derrett, J. Duncan M. An Introduction to Legal Systems. Sweet & Maxwell, 1968.