Dyfyniad APA

P.S.Atiyah. (1995). An Introduction to Law of Contract (5.). Oxford University Press.

Dyfyniad Arddull Chicago

P.S.Atiyah. An Introduction to Law of Contract. 5. New York: Oxford University Press, 1995.

Dyfyniad MLA

P.S.Atiyah. An Introduction to Law of Contract. 5. Oxford University Press, 1995.

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