Citazione Stile APA (7a Edizione)

Tull, G. K., & Bulwer, P. M. (1966). Britain and the world in the nineteenth century (1. publ.). Blandford.

Citazione stile Chigago Style (17a edizione)

Tull, G. K., e P. McG Bulwer. Britain and the World in the Nineteenth Century. 1. publ. London: Blandford, 1966.

Citatione MLA (9a ed.)

Tull, G. K., e P. McG Bulwer. Britain and the World in the Nineteenth Century. 1. publ. Blandford, 1966.