Derrett, J. (1999). Introduction To Legal Systems. Universal Law Publishing.
Cita Chicago (17th ed.)Derrett, J.D.M. Introduction To Legal Systems. Delhi: Universal Law Publishing, 1999.
Cita MLA (9th ed.)Derrett, J.D.M. Introduction To Legal Systems. Universal Law Publishing, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.