Richard G. Niemi. Guide to State Politics and Policy. SAGE.
Lua i Stíl Chicago (17ú heag.)Richard G. Niemi. Guide to State Politics and Policy. SAGE.
Lua MLA (8ú heag.)Richard G. Niemi. Guide to State Politics and Policy. SAGE.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.