Citazione Stile APA (7a Edizione)

Bogart, E. L. (1919). Direct and indirect costs of the Great World War. O.U.P..

Citazione stile Chigago Style (17a edizione)

Bogart, Ernest L. Direct and Indirect Costs of the Great World War. N.Y.: O.U.P., 1919.

Citatione MLA (8a ed.)

Bogart, Ernest L. Direct and Indirect Costs of the Great World War. O.U.P., 1919.