Singh Avtar. (1999). Introduction to law of Contract (3.). Eastern Book company.
Citazione stile Chigago Style (17a edizione)Singh Avtar. Introduction to Law of Contract. 3. Lucknow: Eastern Book company, 1999.
Citatione MLA (9a ed.)Singh Avtar. Introduction to Law of Contract. 3. Eastern Book company, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.