APA-referens (7:e uppl.)

Singh, A. (1999). Introduction to the law of contract (Third edition.). Eastern Book Co..

Chicago-referens (17:e uppl.)

Singh, Avtar. Introduction to the Law of Contract. Third edition. Lucknow: Eastern Book Co., 1999.

MLA-referens (8:e uppl.)

Singh, Avtar. Introduction to the Law of Contract. Third edition. Eastern Book Co., 1999.