Campbell, J. E. (1997). The presidential pulse of congressional elections (Second edition.). The University Press of Kentucky.
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Lua i Stíl Chicago (17ú heag.)
Campbell, James E. The Presidential Pulse of Congressional Elections. Second edition. Lexington, Kentucky: The University Press of Kentucky, 1997.
Cóipeáladh chuig an ngearrthaisce go rathúil é
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Lua MLA (9ú heag.)
Campbell, James E. The Presidential Pulse of Congressional Elections. Second edition. The University Press of Kentucky, 1997.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.