APA استشهاد

Norrander,, B., & Wilcox,, C. (2010). Understanding public opinion (3.). CQ Press.

استشهاد بنمط شيكاغو

Norrander,, Barbara, و Clyde Wilcox. Understanding Public Opinion. 3. Washington D.C.: CQ Press, 2010.

MLA استشهاد

Norrander,, Barbara, و Clyde Wilcox. Understanding Public Opinion. 3. CQ Press, 2010.