Παραπομπή APA

Ed by Penn,Roger, & Berridge, D. (2010). Social statistics.Vol.4: The statistical modelling of ordinal categorical data. Sage publications.

Παραπομπή Chicago Style

Ed by Penn,Roger, και Damon Berridge. Social Statistics.Vol.4: The Statistical Modelling of Ordinal Categorical Data. London: Sage publications, 2010.

Παραπομπή MLA

Ed by Penn,Roger, και Damon Berridge. Social Statistics.Vol.4: The Statistical Modelling of Ordinal Categorical Data. Sage publications, 2010.