Peel, E., & Treitel, G. H. T. o. t. L. o. C. (2011). The law of contract (Thirteenth edition.). Sweet & Maxwell.
Lua i Stíl Chicago (17ú heag.)Peel, Edwin, agus G. H.. Treitel on the Law of Contract Treitel. The Law of Contract. Thirteenth edition. London: Sweet & Maxwell, 2011.
Lua MLA (9ú heag.)Peel, Edwin, agus G. H.. Treitel on the Law of Contract Treitel. The Law of Contract. Thirteenth edition. Sweet & Maxwell, 2011.
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