APA-viite (7. p.)
Zetter, L. (2011). Lobbying: The art of political persuasion (Revised, updated and expanded second edition.). Harriman House.
Chicago-viite (17. p.)
Zetter, Lionel. Lobbying: The Art of Political Persuasion. Revised, updated and expanded second edition. Petersfield, Hampshire: Harriman House, 2011.
MLA-viite (9. p.)
Zetter, Lionel. Lobbying: The Art of Political Persuasion. Revised, updated and expanded second edition. Harriman House, 2011.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.