Citazione Stile APA (7a Edizione)

Hugh collins. (1993). The Law Of Contract (2.). Butter worth.

Citazione stile Chigago Style (17a edizione)

Hugh collins. The Law Of Contract. 2. London: Butter worth, 1993.

Citatione MLA (9a ed.)

Hugh collins. The Law Of Contract. 2. Butter worth, 1993.