Citazione Stile APA (7a Edizione)

Foster, J. W. (1906). The practice of diplomacy as illustrated in the foreign relations of the United States. s.n.

Citazione stile Chigago Style (17a edizione)

Foster, John Watson. The Practice of Diplomacy as Illustrated in the Foreign Relations of the United States. Boston, Houghton, Mifflin: s.n, 1906.

Citatione MLA (9a ed.)

Foster, John Watson. The Practice of Diplomacy as Illustrated in the Foreign Relations of the United States. s.n, 1906.