Cita APA (7a ed.)

Treitel, G. H. (1991). The law of contract (8th ed.). Sweet & Maxwell.

Cita Chicago Style (17a ed.)

Treitel, G. H. The Law of Contract. 8th ed. London: Sweet & Maxwell, 1991.

Cita MLA (9a ed.)

Treitel, G. H. The Law of Contract. 8th ed. Sweet & Maxwell, 1991.