Citazione Stile APA (7a Edizione)

Cent, 5. G. (2009). The 50th Law (1st.). Profile Book.

Citazione stile Chigago Style (17a edizione)

Cent, 50; Greene. The 50th Law. 1st. London: Profile Book, 2009.

Citatione MLA (9a ed.)

Cent, 50; Greene. The 50th Law. 1st. Profile Book, 2009.