Ibbetson, D. (2001). A Historical Introduction to the Law of Obligations. Oxford University Press.
Cita Chicago (17th ed.)Ibbetson, David. A Historical Introduction to the Law of Obligations. Oxford, Great Britain: Oxford University Press, 2001.
Cita MLA (9th ed.)Ibbetson, David. A Historical Introduction to the Law of Obligations. Oxford University Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.