APA-referens (7:e uppl.)

Singh Avtar. (1999). Introduction to law of Contract (3.). Eastern Book company.

Chicago-referens (17:e uppl.)

Singh Avtar. Introduction to Law of Contract. 3. Lucknow: Eastern Book company, 1999.

MLA-referens (9:e uppl.)

Singh Avtar. Introduction to Law of Contract. 3. Eastern Book company, 1999.