Copley, G. R. (1972). Defense & foreign affairs digest. Copley & Associates.
Lua i Stíl Chicago (17ú heag.)Copley, Gregory R. Defense & Foreign Affairs Digest. Washington, DC: Copley & Associates, 1972.
Lua MLA (8ú heag.)Copley, Gregory R. Defense & Foreign Affairs Digest. Copley & Associates, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.