APA (7th ed.) Citation

Raz, J. (1980). The concept of a legal system: An introduction to the theory of legal system (2nd ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Raz, Joseph. The Concept of a Legal System: An Introduction to the Theory of Legal System. 2nd ed. Oxford: Oxford University Press, 1980.

MLA (9th ed.) Citation

Raz, Joseph. The Concept of a Legal System: An Introduction to the Theory of Legal System. 2nd ed. Oxford University Press, 1980.