Irwin, W. (1921). "The next war": An appeal to common sense. E. P. Dutton & Company.
Lua i Stíl Chicago (17ú heag.)Irwin, Will. "The Next War": An Appeal to Common Sense. New York: E. P. Dutton & Company, 1921.
Lua MLA (8ú heag.)Irwin, Will. "The Next War": An Appeal to Common Sense. E. P. Dutton & Company, 1921.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.