Asher, H. B. (1988). Polling and the public: What every citizen should know. CQ.
Cita Chicago Style (17a ed.)Asher, Herbert B. Polling and the Public: What Every Citizen Should Know. Washington: CQ, 1988.
Cita MLA (9a ed.)Asher, Herbert B. Polling and the Public: What Every Citizen Should Know. CQ, 1988.
Precaución: Estas citas no son 100% exactas.