APA استشهاد

Peel,Edwin. (2011). The law of contract (ed.13.). Sweet & Maxwell.

استشهاد بنمط شيكاغو

Peel,Edwin. The Law of Contract. ed.13. London: Sweet & Maxwell, 2011.

MLA استشهاد

Peel,Edwin. The Law of Contract. ed.13. Sweet & Maxwell, 2011.