Citazione Stile APA (7a Edizione)

Williams, S. A. (1949). Great Britain and the world: 1870-1949 ; the age of competition (1. publ.). Harrap.

Citazione stile Chigago Style (17a edizione)

Williams, Samuel Arthur. Great Britain and the World: 1870-1949 ; the Age of Competition. 1. publ. London [u.a.]: Harrap, 1949.

Citatione MLA (9a ed.)

Williams, Samuel Arthur. Great Britain and the World: 1870-1949 ; the Age of Competition. 1. publ. Harrap, 1949.