Treitel G.N. Law of Contract (13th.). Sweet& Maxwell.
Lua i Stíl Chicago (17ú heag.)Treitel G.N. Law of Contract. 13th. London London: Sweet& Maxwell.
Lua MLA (9ú heag.)Treitel G.N. Law of Contract. 13th. Sweet& Maxwell.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.