Cita APA (7th ed.)

Treitel G.N. Law of Contract (13th.). Sweet& Maxwell.

Cita Chicago (17th ed.)

Treitel G.N. Law of Contract. 13th. London London: Sweet& Maxwell.

Cita MLA (9th ed.)

Treitel G.N. Law of Contract. 13th. Sweet& Maxwell.

Atenció: Aquestes cites poden no estar 100% correctes.