Treitel, G. H. (1984). An outline of the law of contract (3rd ed.). Butterworths& co. Ltd.
Chicago Style aipamenaTreitel, G H. An Outline of the Law of Contract. 3rd ed. England: Butterworths& co. Ltd, 1984.
MLA aipamenaTreitel, G H. An Outline of the Law of Contract. 3rd ed. Butterworths& co. Ltd, 1984.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.