Boyd, G. (1981). Issues in global politics. The Free Press.
Lua i Stíl Chicago (17ú heag.)Boyd, Gavin. Issues in Global Politics. The Free Press, 1981.
Lua MLA (9ú heag.)Boyd, Gavin. Issues in Global Politics. The Free Press, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.