Text ( visual ) : unmediated Polling America : an encyclopedia of public opinion / editors, Richard L. Clark ... [et al.]. -- 2nd ed. -- v. 2. -- Santa Barbara, Calif. : Greenwood , c2020. -- x p., p. [419]-857 : ill. ; 27 cm. -- Other editors: Kelly N. Foster, Samuel J. Best, and Benjamin Radcliff ; Vol. 2. P-Z ; Set ISBN: 9781440837340 ; Includes bibliographical references and index. -- ISBN 9781440849190 ; (BC04835613) ; https://ci.nii.ac.jp/ncid/BC04835613 Author Heading(s): Clark, Richard L. (Political science professor) ; Foster, Kelly N. ; Best, Samuel J. ; Radcliff, Benjamin. -- Classification(s): LCC : HN90.P8 ; DC23 : 303.3/8097303. -- Subject Heading(s): LCSH : Public opinion -- United States -- Encyclopedias ; LCSH : Public opinion -- United states -- History -- Encyclopedias ; LCSH : Public opinion polls -- Encyclopedias ; LCSH : Public opinion polls -- History -- Encyclopedias