Text ( visual ) : unmediated Polling for democracy : public opinion and political liberalization in Mexico / edited by Roderic Ai Camp. -- : cloth. -- Wilmington, Del. : Scholarly Resources , 1996. -- viii, 186 p. : ill. ; 24 cm. -- (Latin American silhouettes). -- Includes bibliographical references (p. 173-175) and index. -- ISBN 0842025839 ; (BA29940759) ; https://ci.nii.ac.jp/ncid/BA29940759 Author Heading(s): Camp, Roderic Ai