APA-viite

Avtar Singh. (1999). Introduction to law of contract (3rd ed.). Eastern book company.

Chicago-tyylinen lähdeviittaus

Avtar Singh. Introduction to Law of Contract. 3rd ed. Lucknow: Eastern book company, 1999.

MLA-viite

Avtar Singh. Introduction to Law of Contract. 3rd ed. Eastern book company, 1999.