Ayres, L. P. (1919). The war with Germany: A statistical summary. Government Printing Office.
Citazione stile Chigago Style (17a edizione)Ayres, Leonard Porter. The War with Germany: A Statistical Summary. Washington: Government Printing Office, 1919.
Citatione MLA (9a ed.)Ayres, Leonard Porter. The War with Germany: A Statistical Summary. Government Printing Office, 1919.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.