International Peace Research Association & Alger, C. F. (1998). The future of the United Nations system: Potential for the twenty-first century. United Nations University Press.
Lua i Stíl Chicago (17ú heag.)International Peace Research Association agus Chadwick F. Alger. The Future of the United Nations System: Potential for the Twenty-first Century. Tokyo ; New York: United Nations University Press, 1998.
Lua MLA (8ú heag.)International Peace Research Association agus Chadwick F. Alger. The Future of the United Nations System: Potential for the Twenty-first Century. United Nations University Press, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.