Singer, D. (1980). The correlates of war II: Testing some realpolotik models. The Free Press.
Lua i Stíl Chicago (17ú heag.)Singer, David. The Correlates of War II: Testing Some Realpolotik Models. The Free Press, 1980.
Lua MLA (9ú heag.)Singer, David. The Correlates of War II: Testing Some Realpolotik Models. The Free Press, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.