Bone, H. A., & Ranney, A. (1976). Politics and Voters (4th ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Bone, Hugh A., agus Austin Ranney. Politics and Voters. 4th ed. New York: McGraw-Hill, 1976.
Lua MLA (9ú heag.)Bone, Hugh A., agus Austin Ranney. Politics and Voters. 4th ed. McGraw-Hill, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.