Singh, A. (1983). An introduction to the law of contract (2nd ed.). Eastern Book Company.
Cita Chicago (17th ed.)Singh, Avtar. An Introduction to the Law of Contract. 2nd ed. Lucknow: Eastern Book Company, 1983.
Cita MLA (8th ed.)Singh, Avtar. An Introduction to the Law of Contract. 2nd ed. Eastern Book Company, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.