Purkitt, H. E. (1996). World politics 96/97. Dushkin Pub. Group.
Lua i Stíl Chicago (17ú heag.)Purkitt, Helen E. World Politics 96/97. Guilford, Conn.: Dushkin Pub. Group, 1996.
Lua MLA (8ú heag.)Purkitt, Helen E. World Politics 96/97. Dushkin Pub. Group, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.