Singh , A. (1989). Law of contract (5.). Eastern Book company.
Chicago Style aipamenaSingh , Avtar. Law of Contract. 5. Lucknow: Eastern Book company, 1989.
MLA aipamenaSingh , Avtar. Law of Contract. 5. Eastern Book company, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.