Johnson, J. (2002). Directory of political lobbying: 2002. Politico's Publishing.
Cita Chicago Style (17a ed.)Johnson, Justin. Directory of Political Lobbying: 2002. London: Politico's Publishing, 2002.
Cita MLA (9a ed.)Johnson, Justin. Directory of Political Lobbying: 2002. Politico's Publishing, 2002.
Precaución: Estas citas no son 100% exactas.