APA استشهاد

Keating, D. (1978). Building contracts (4th ed.). Sweet & Maxwell.

استشهاد بنمط شيكاغو

Keating, Donald. Building Contracts. 4th ed. London: Sweet & Maxwell, 1978.

MLA استشهاد

Keating, Donald. Building Contracts. 4th ed. Sweet & Maxwell, 1978.