APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc, Goidel, R. K., & Cook, C. (2011). Political polling in the digital age: The challenge of measuring and understanding public opinion. Louisiana State University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc, Robert K. Goidel, ба Charlie Cook. Political Polling in the Digital Age: The Challenge of Measuring and Understanding Public Opinion. Baton Rouge: Louisiana State University Press, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc, et al. Political Polling in the Digital Age: The Challenge of Measuring and Understanding Public Opinion. Louisiana State University Press, 2011.