 | Daniel Yankelovich - 1991 - 324 páginas
"In his most important book to date, Daniel Yankelovich, the dean of American public research, offers a prescription for strengthening the public's hand in its silent power ... | |
 | Daniel Yankelovich - 1991 - 324 páginas
"In his most important book to date, Daniel Yankelovich, the dean of American public research, offers a prescription for strengthening the public's hand in its silent power ... | |
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