Zetter, L. (2011). Lobbying: The art of political persuasion (Revised, updated and expanded second edition.). Harriman House.
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Lua i Stíl Chicago (17ú heag.)
Zetter, Lionel. Lobbying: The Art of Political Persuasion. Revised, updated and expanded second edition. Petersfield, Hampshire: Harriman House, 2011.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua MLA (9ú heag.)
Zetter, Lionel. Lobbying: The Art of Political Persuasion. Revised, updated and expanded second edition. Harriman House, 2011.
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.