APA استشهاد

Upex, R. D. (1991). Davies on contract (6th ed.). Sweet & maxwell.

استشهاد بنمط شيكاغو

Upex, Robert Davies. Davies on Contract. 6th ed. London: Sweet & maxwell, 1991.

MLA استشهاد

Upex, Robert Davies. Davies on Contract. 6th ed. Sweet & maxwell, 1991.