Asher, H. B. (2001). Polling and the public: What every citizen should know. CQ Press.
Cita Chicago Style (17a ed.)Asher, Herbert B. Polling and the Public: What Every Citizen Should Know. Washington, DC: CQ Press, 2001.
Cita MLA (9a ed.)Asher, Herbert B. Polling and the Public: What Every Citizen Should Know. CQ Press, 2001.
Precaución: Estas citas no son 100% exactas.