Citazione Stile APA (7a Edizione)

Gibberd, K. (1933). The league in our time. Blackwell.

Citazione stile Chigago Style (17a edizione)

Gibberd, Kathleen. The League in Our Time. Oxford: Blackwell, 1933.

Citatione MLA (9a ed.)

Gibberd, Kathleen. The League in Our Time. Blackwell, 1933.