Não informado. (1973). National Defense. American Defense Preparedness Association.
Lua i Stíl Chicago (17ú heag.)Não informado. National Defense. Washington: American Defense Preparedness Association, 1973.
Lua MLA (8ú heag.)Não informado. National Defense. American Defense Preparedness Association, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.