Singh Avtar. Introduction to Jurisprudence (4th.). Lexis Nexis.
Cita Chicago (17th ed.)Singh Avtar. Introduction to Jurisprudence. 4th. Nagpur Nagpur: Lexis Nexis.
Cita MLA (9th ed.)Singh Avtar. Introduction to Jurisprudence. 4th. Lexis Nexis.
Atenció: Aquestes cites poden no estar 100% correctes.