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Lua i Stíl Chicago (17ú heag.)Helpman, Elhanan, agus Torsten Persson. Lobbying and Legislative Bargaining. Cambridge: National Bureau of Economic Research, 1998.
Lua MLA (9ú heag.)Helpman, Elhanan, agus Torsten Persson. Lobbying and Legislative Bargaining. National Bureau of Economic Research, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.