کتاب های Robert S. Erikson
American Public Opinion: Its Origins, Content and Impact
Robert S Erikson & Kent L. Tedin [Erikson, Robert S], 2015
Statehouse Democracy: Public Opinion and Policy in the American States
Robert S. Erikson, 1993
The Timeline of Presidential Elections: How Campaigns Do (and Do Not) Matter
Robert S. Erikson, Christopher Wlezien, 2012
